Get-A-Grip Advanced Winter Traction Slip-on Spikes

"Keep from falling on snowy and icy terrain with these sturdy rubber slip-on spikes. The innovative bi-directional tread pattern provides more traction, while a diamond pattern and carbide spikes offer more push-off and lateral grip. The wide, thick heel strap gives a better grip with added durability. Spikes fit snugly over shoes. Includes two extra spikes.Small (women's 5-8, men's 4-7), Medium (women's 9 and up, men's 8-10), Large (men's 11-14).Made in USA.No product can totally eliminate the risk of slipping or falling. Therefore, you should continue to use extreme caution when walking or jogging on slippery surfaces. Use at your own risk."