MonoGut ZX Pro MonoGut ZX Dynamite 18 Soft Dynamite 17 Natural Dynamite 16 Tough Crossfire +Plus Crossfire 18 Crossfire 17 Crossfire II Kevlar +Plus Kevlar 18 Kevlar 17 Kevlar 16 MonoGut 17 MonoGut Synthetic Gut 17 Synthetic Gut 16 Liberty 16 Liberty L15 Monofire XL 1.25 Monofire XL 1.30