Weanas Unisex Multi-Function Anti-Slip Ice Cleat Shoe Boot Tread Grips Traction Crampon Chain Spike 1 Pair Weanas micro spikes shoe cover are a pocket sized traction system that allow anyone, of any age to get out and safely enjoy winter. Easy on/off to fit boots, sneakers, casual and dress shoes. These slip on spikes dig into all types of terrain-ice, snow, wet rocks, concrete, and scree. Extremely durable, they attach securely to your footwear and require no special buckles or straps. Thermoplastic elastomer with excellent elastic & high density stainless steel to ensure the maximum durability. Securely attached to your footwear & these slip-on spikes can dig into all types of terrain ice, packed snow, wet rocks, concrete, and scree Easily fit the shoes of US Men 6-10.5/ Women 5-12 (Europe Size: 35-45) Thermoplastic elastomer with excellent elastic &amp; high density stainless steel to ensure the maximum durability Hardened stainless-steel spikes dig into icy terrain Tote sack included