Near infinite adjustability for splitboards built with inserts. A unique design gives the Spark Pucks channel-like adjustability for regular splitboards. Installation Guide Weight: 284g pair Aluminum Discs:Oversize aluminum center disc overlaps binding channels for maximum strength and rigidity. Adjustability: +/- quarter inch (6.5mm) of toe/heel adjustment allows for perfect centering. An industry first! +/- 30 degree angle adjustments infinite stance width and setback adjustments. Superior Materials:Bindings slide on soft nylon for effortless installation. Compatible with all Spark R&D and other brands' puck compatible splitboard bindings(with the exception of the K2 Kwicker). Not compatiblewith DIY splitboards (unless the Voile factory hole pattern was used) or channel style boards from Voile, Burton, and K2. Please note:Spark Puck screws are not compatible with Spark Canted Pucks.