Specifications: The spikes and chain are made of high strength stainless steel, make it never bend. Double chain design makes it more durable and stronger. With better traction and grip and also is of flexibility, it ensuring that your shoes are tightly held to reduce the risk of hurt from falls or slips. This rubber is highly elastic, great toughness, won't tear or snap.ensuring long-lasting comfort and durability. Easy to put on and off with secure and adjustable straps, could quick and secure fit on a variety of footwear. Shoe cover is suitable for various kinds of sports/hiking shoes and boots, mountaineering boots. Light and simple crampon is suitable for special places and outdoor activities such as ice and snow, rainy days, mud roads, slippery ground, ice, deserts, etc. Item Name: Shoe Cover Material: TPE Soft Rubber, 201 Stainless Steel, 304 Stainless Steel Features: Non Slip, Durable, 19 Studs Flat Size: M: 19cm x 15.5 x 0.55cm/7.48" x 6.1" x 0.22" (Approx.) L: 21cm x 17 x 0.55cm/8.27" x 6.69" x 0.22" (Approx.) XL: 22cm x 18 x 0.55cm/8.66" x 7.09" x 0.22" (Approx.) Suitable Shoe Size: M: Free Size 36-40 (Asian Size) L: Free Size 41-44 (Asian Size) XL: Free Size 44-46 (Asian Size) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. The Asian size is different from US/EU/UK size, please compare the detail sizes with yours before you buy. Please decide the shoes size according to your foot length or your shoes inside length. Package Includes: 1 Pair of Shoe Covers (Shoe Not Included) 1 x Storage Bag 2 x Strap