Spark R&D Canted Pucks (Metal)All the same great features of our Spark Flat Pucks, but with 3 canting for reduced knee strain. Near infinite adjustability for splitboards with inserts. Quick mounting with super fine foot placement, angle, and toe heel centering adjustments. Features: Weight: 11. 36 oz pr (322g) 3 Canting: With 3 of canting to reduce strain, your knees will thank you. Oversize Disk: Center disk overlaps binding channels for maximum strength and rigidity.