Tourna 550-ES Electric Stringing Machine

This is my first stringing machine! My coach and I strung 3 rackets on it already. After assembling the machine, it is very easy to learn and use. The product is clearly made with high quality. Also, electric stringer is much faster and accurate! The only small inconvenience was that at first the turntable was likely locked tight for shipping, but it wasn’t very easy or straightforward to unlock or unscrew the knob to loosen the turntable. I had to wiggle the knob until the threads were back on track to rotate the knob.

Awful product. I tried to chooose 0 stars but could not. Amazon advertised the product as new but was sold used. I got a return slip in it with a due date about 3 weeks before I purchased it. The calibration screws were in bad shape and they are meant to calibrate the 11 lb and 66 lb #'s. On the 11 lb calibration it only changed between two #'s with a 6 lb difference. On the higher end 66 lbs pulled only 54 lbs of tension. I could change the calibration for this # but I could not change the # to go any lower, only higher. If I changed the 11 lb calibration # the machine pulled 40 lbs more than what the wise2090 calibration tool could. Do not purchase this item. I would recommend only purchasing items that are still in circulation or it is likely to purchase an old item and amazon does not make sure these items are working correctly as they are not necessarily tennis machine experts. I got a full refund of this item but the time wasted trying to get this to work blows my mind.

I’m new to stringing but this was easy enough to use that I’ve gotten to be pretty good after only about 5 racquets. I bought a sturdy, high table which I highly recommend to protect your back and have storage for string and other materials. It makes getting racquets restrung far easier and I can do it whenever I want to experiment with tension, gauge, type. Great buy.

Not professionally packaged inside when opened the box. Attached instructions is not clear about how to install and how to use. Product website does not have clear instruction video either. We had to leverage other YouTube videos with other products to understand how to work. When trying to use, the tension button was not functioning normally during a session until unplugged and reset. Overall frustrating experience for someone with no stringing experience. All of the above makes me doubt the quality and reliability of the machine for long term use. We are returning it.