Astra Depot One Pair Black No Slip Ice Cleat Shoe Boot Tread Grips Traction Crampon Chain Winter Sport Snow w/Pouch Carabiner Easily fit the shoes of US size 5-10 ( Europe Size: 35-44 ); Easy on/off to fit boots, sneakers, casual and dress shoes-- Wrap the front around your toe section, then stretch the back around your heel Thermoplastic elastomer with excellent elastic & high density manganese 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 Simple rinse clean via the tap or hose. Reduce the risk of injury from slips and falls when walk on ice, snow, mud and wet grass or other poor conditions.