The Square-X is easily in our Top 3 best selling co-polys for its softness and incredible feel. Most players we know who played with rpm have switched to the Square-X not only because of the price but it’s playability and durability. If you want a very soft co-poly which is easy on the arm; incredible feel and durable but less than half the cost of rpm...then switch to this gem!
This is a square shapes string with Two Flat surfaces, mains/crosses, in contact with each other give extra durability, no notching and the string returns very quickly from any movement after hitting the ball.
Gauge: 16L (1.25mm)
Length: 40ft/12m and 660ft/200m
Construction: Square Shaped Co-Polyester + Carbon