Manufacturer: SIDAS Sidas Sidas Ski Traction Sole Protector Color: Black Size: Free (with size adjustment function) Adjustable sole size range: 260mm-350mm (in 10mm increments) Part number: 3115731 Attaches to the bottom of ski boots for safe walking on snow Made of flexible and durable rubber Features an inner frame for high grip With size adjustment function, compatible with any boot size Fine spike shape enhances grip on snow Size adjustment: 1. Check the length (mm) of the ski boot 2. Adjust the ski traction to the corresponding size. 3. Tighten with a Phillips screwdriver. Shipping: Yu-packet Post. (The box will be folded and included.) ★ Immediate purchase without comment is OK.