This is a listing for GRIVEL Flex Metal Plates (Pair). These are metal plates that connect the toe and heel parts of crampons. If you are looking for these, please consider purchasing them. The following is the manufacturer's description: Made of flexible, thin steel plate. Maintains high flexibility and durability. Compatible with soft boots for snowboarders and soles with a large curvature. Length: 160mm (approximately 145mm from the jaw to the center of the farthest hole) Width: 20mm