Discription of Marker M 11 Twin Cam Piston Control Ski Bindings If you are a mid range all conditions skier than the M11.0 Twin Cam PC ski bindings are for you. Get in and out quickly with its Twincam Heel while skiing in all conditions just got a little bit easier. The standard in high performance custom systems, Marker's Twin Cam collection offers grteat performance and comfort. Features: Twin Cam heel EPS system Stainless steel friction-free AFD gliding plate Biometric system Recommended skier weight: 65-240lbs.