Cactus Ropes' Xplosion Core TX Heel Rope has more tip weight even in a medium diameter rope. The roper will notice an extreme increase in the longevity of the CoreTX ropes, due to the decrease in stretch from run to run, plus the four strands are now twisted around a "foundation" which adds much more durability and life to the outside strands. Sizes: 36' MS ("medium soft" heel lay)36' M ("medium" heel lay) | Cactus Ropes Xplosion CoreTX Heel Rope in Purple | Size 36' MS