Package includes: 1 pair of Traction Cleats, 1 pair of tape strap, 1 storage bag Material:rubber+ steel coils Color: Black Uses: Anti-skid （on the snow） Highly Elastic: Suitable for all kinds of sports shoes, hiking shoes, mountaineering boots,etc. SIZE-M: Women5-10, Men3-8, EU 5-42, foot length 221-255mm / 8.625-10inch; Sole length: 230-292mm / 9-11.5inch SIZE-L: Women10-15, Men9-13, EU43-47, foot length 255-297 mm / 10-11.625 inch Sole length: 272-331mm / 10.7-13inch Made of abrasion-resistant 1.2 mm steel coils, provide multi-derectional traction, resistant for Superior grip on packed snow. It's safer to walk in the snow. Effectively prevent people of all ages and both sexes slipping on snow and ice condition, great for ice fishing, hunting, walking, jogging, hiking, running, snow shoveling, etc.