The Quadro Twist is our flagship string! If you are looking for a very SOFT co-poly and a SPIN Monster then this string is for you! This is the best tennis string on the market you can get besides natural gut! This is a square profile co-polyester + carbon + polyolefin string manufactured by a dual process of extension and axial twisting, finished with a patented Thermo Foil Cooling process Racquet Stringers Industry rated the Quadro #1 in spin and #2 overall out of 157 strings they playtested: "Our playtest team ranked YTEX Quadro Twist to be the best tennis string for Spin Potential. Our team also ranked Quadro Twist second overall in Tension Retention, fourth overall in Resistance to Movement, ninth overall in both Power and Control, and 13th overall in Durability. They also ranked it well above average in Playability. As a result, the cumulative score vaults YTEX Quadro Twist into second place overall of the 159 strings we’ve playtested to date for publication"
