Fits Boots 1-6 * Molded ankle strap: The strap is preformed to fit the contours of the boot where the leg meets the foot at a 90 degree angle. * Aluminum ratchets: A more durable option to plastic or steel ratchets, they are just as light as plastic, but a lot more durable. * Aluminum heelcup: Aluminum is used as the heelcup of this binding to add strength and durability. * 4 Hole Disc: This binding has the standard 4 hole pattern to fit any snowboard, except Burton.