Bent Metal Joint Snowboard Bindings. Create a fluid link between you, your board, and the mountain with the BMBW Joint. The Joint brings BMBW’s standard of high performance components and a Mervin Made flex control drive plate together for less money and more all mountain action. The medium flex drive plate pairs with a nylon highback and heel cup along with the power flex ankle strap to create a responsive yet forgiving all mountain performance. Overall binding flex: Medium Soft (5/10). EVA foam footbed. Eco sublimated top-sheet. Boron fiber. Poly core. Co-Ex bottom-sheet. Fiber reinforced nylon cage. Imported.