If you"re game is aggressive, demand a string that"s not scared to stand up to you. The New Adrenaline provides abundant power, precision and playability for aggressive and exciting competitive players. The new liquid crystal polymer technology offers tour quality performance and outrageous game enhancement. At 1.20mm or 1.25mm gauges, the Adrenaline is ideal for tennis or for use in squash racket full restrings or hybrids.3 strings in 1:Adrenaline 120: Extreme Feel and BiteAdrenaline 125: Balanced Playability and DurabilityAdrenaline 130: Added Durability Gauge: 1.20mm x 200mColour: Platium