--- product_id: 570070692 title: "Flex Lock Strap Blocks - Locks Straps In Place - Protect Your Instrument with No Modifications or Hardware - Easy to Attach - Set of 4 Blocks - Black" price: "€ 12.27" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.at/products/570070692-flex-lock-strap-blocks-locks-straps-in-place-protect-your store_origin: AT region: Austria --- # Secure strap lock Sleek black design No hardware mods Flex Lock Strap Blocks - Locks Straps In Place - Protect Your Instrument with No Modifications or Hardware - Easy to Attach - Set of 4 Blocks - Black **Price:** € 12.27 **Availability:** ✅ In Stock ## Summary > 🔒 Lock in your vibe, not your guitar’s style. ## Quick Answers - **What is this?** Flex Lock Strap Blocks - Locks Straps In Place - Protect Your Instrument with No Modifications or Hardware - Easy to Attach - Set of 4 Blocks - Black - **How much does it cost?** € 12.27 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/570070692-flex-lock-strap-blocks-locks-straps-in-place-protect-your) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Security:** Snap-on Flex Lock blocks keep your strap locked tight—no accidental drops, no stress. - • **Lightweight & Discreet:** At just 10g, these blocks add security without bulk or distraction. - • **Universal Compatibility:** Fits any standard guitar strap, turning your favorite strap into a reliable locking system. - • **Affordable Pro Protection:** Top-tier strap security without the premium price or complex installation. - • **Zero Guitar Modifications:** Protect your instrument’s finish—no drilling, no screws, just clip and play. ## Overview D'Addario Flex Lock Strap Blocks provide a simple, no-modification solution to secure guitar straps. Made from durable plastic and rubber, these lightweight black blocks snap onto any guitar strap to prevent accidental release, offering professional-grade security without hardware changes or drilling. Ideal for musicians seeking reliable strap protection with easy installation and a sleek, unobtrusive design. ## Description From the manufacturer Description D'Addario products are synonymous with quality and innovation in the world of musical accessories. Specializing in strings for various instruments, including guitars and orchestral strings, D'Addario has earned a reputation for producing strings that offer exceptional tone and durability. Additionally, their product line extends to accessories such as picks, cables, and instrument care products. Known for their commitment to advancing musical technology, D'Addario continually introduces innovative products that cater to the needs of musicians across genres. With a legacy spanning centuries, D'Addario remains a trusted choice for musicians seeking reliable and performance-enhancing accessories for their instruments. Review: Decent and functional - Good quality and value considering the expensive other options easy to assemble no problem with use and design ok too. Review: Actually does the job. - These give an additional level of confidence to what can only be described as the terrible strap attachment found on most guitars - designed to fail eventually. These aren't in the same league as the dedicated quick release devices such as Schaller strap locks, but if you are keeping the strap on the same guitar then they will help to keep the stap in place. Depending on the strap thickness and guitar mount these can be easy to fit or not! Found on one guitar had to unscrew the mount slightly, fit the flex lock strap and then tighten it up again. Well worth having if not using a quick release type device, plus here is no hole drilling etc. Would I buy again - Yes. ## Features - PROTECT YOUR GUITAR: D'Addario Flex Lock Strap Blocks–protecting your instrument and your performance. Turn your favorite guitar strap into a locking guitar strap. - NO ADDITIONAL HARDWARE: Affordable strap lock solution without the need to replace any hardware. Strap security at a low cost without needing to mod your guitar. - NO MODIFICATIONS: Without need of modification, the Flex Lock Strap Block clips onto your guitar strap to prevent your strap from releasing accidentally. - EASY TO ATTACH: Snap on top of any Guitar Strap for a secure fit - D’ADDARIO ACCESSORIES - D’Addario Accessories (formerly Planet Waves) has been leading the industry in innovative and problem-solving products that serve musicians worldwide. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CH8GD2Q7 | | Best Sellers Rank | 254 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 2 in Strap Locks | | Body Material | Plastic/Rubber | | Colour | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (1,424) | | Date First Available | 15 Sept. 2023 | | Item Weight | 10 g | | Item model number | PW-FLSB-04BK | | Material Type | Plastic | | Product Dimensions | 10 x 10 x 5 cm; 10 g | ## Images ![Flex Lock Strap Blocks - Locks Straps In Place - Protect Your Instrument with No Modifications or Hardware - Easy to Attach - Set of 4 Blocks - Black - Image 1](https://m.media-amazon.com/images/I/61s+R59XfkL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Decent and functional *by M***X on 12 February 2026* Good quality and value considering the expensive other options easy to assemble no problem with use and design ok too. ### ⭐⭐⭐⭐⭐ Actually does the job. *by B***T on 30 April 2024* These give an additional level of confidence to what can only be described as the terrible strap attachment found on most guitars - designed to fail eventually. These aren't in the same league as the dedicated quick release devices such as Schaller strap locks, but if you are keeping the strap on the same guitar then they will help to keep the stap in place. Depending on the strap thickness and guitar mount these can be easy to fit or not! Found on one guitar had to unscrew the mount slightly, fit the flex lock strap and then tighten it up again. Well worth having if not using a quick release type device, plus here is no hole drilling etc. Would I buy again - Yes. ### ⭐⭐⭐⭐⭐ They work! *by J***C on 10 June 2026* Simple is almost always the best! ## Frequently Bought Together - D'Addario Flex Lock Strap Blocks - Locks Straps In Place - Protect Your Instrument with No Modifications or Hardware - Easy to Attach - Set of 4 Blocks - Black - D'Addario Dual-Lock Guitar Strap Lock - Guitar Strap Locks Set - Protect Your Instrument with No Modifications or Hardware - Secures Cables - Easy to Attach - 1 Pair,Black - Ernie Ball Polypro Guitar Strap, Black (P04037) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/570070692-flex-lock-strap-blocks-locks-straps-in-place-protect-your](https://www.desertcart.at/products/570070692-flex-lock-strap-blocks-locks-straps-in-place-protect-your) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-08-16*