MOB G10 fiberglass composite boot plate, offers better flex and rebound for higher performance slalom. Wider design offers more stability and features Safety Walk boot pad. Fits MOB, ARC, and OB4 release systems. Select front or back release. Works with most hardshell boots, including MOB, OB4, Reflex, Fluid Motion, Powershells, and also Radar Vapor & Pulse, HO Vmax, Connelly Sync, D3 T-Factor, and O'Brien Legion. X-Long plate needed for size 12-15 boots, only fits MOB mounting plate. Jr/Short Plate also available for small shoe sizes. Includes Socket & Wedge.