Aluminum Disks: Oversize aluminum center disk overlaps binding channels for maximum strength and rigidity; Adjustability: +/- 1/4 inch (6.5mm) of toe/heel adjustment in .5 inch (1.3mm) increments; +/- 30 degrees angle adjustments in 3 degrees increments; Stance width adjustments in .17 inch (4.2mm) increments; Superior Materials: Bindings slide on soft nylon for effortless installation; Weight: 10.19oz/pr (289g)