Take any bindings on and off in less than 30 seconds.Adjust the angle of your bindings in seconds. Rental shops use these to quickly adjust bindings for each riders style. No more un-screwing your bindings bolts to take your bindings off. This is so easy just turn the flip up handle to install, adjust or remove your bindings. Works on Bindings mounted on 4x4 or 3x3 burton inserts Snowboard. (we cannot guarantee fit, please check sizing below)Top disc size 10cm - Bottom disc size 8.6cm. Bindings in pic are not included. Allows you to adjust your stance on the slopes, Goofy or Regular. These Swivel Rotating Device can used on most any adult Bindings Manufacturer that uses standard format discs. Our Price is for a set of 2. Beware of other sellers only selling 1 disc. Comes with set of burton screws and all parts needed. Retails for $100 new. Used- Burton Quick Discs Release Turn to Install or Remove Fast Snowboard Bindings. Specifications Key Features of the Burton Quick Disc: Binding Discs Material: Poly, Stainless Top disc size 10cm - Bottom disc size 8.6cm