Sure Foot 10370200010 Get-A-Grip Traction Cleat, Large Replaceable ice diamond carbide spikes last 10 times longer than steel Retains shape at all temperatures, always stays flexible and tight to the shoe or boot Lightweight and fits in your pocket, purse, brief case or glove box Increased traction to prevent falling casued by ice or snow Very easy to put on and take off with no snap, straps or buckles