Rotatable Binding System fits 4 hole and Burton 3 hole patterns * Bullet-proof stainless steel twist plate + riser pad for backfoot. Beware of dangerous flimsy plastic twist plate imitators! * Lets you push off skateboard-style for easy maneuverability at lift lines * Relieves Knee Twist. Lift chair rides are more comfortable with the board facing forward * Make easy on the fly angle adjustments with easy pull leash