Anti-slip Ice Cleats Ergodyne TREX 6300 Traction Cleat Grips Ice And Snow, One-Piece Easily Winter Boot Traction Devices Extremely durable studs – Tungsten carbide studs are stronger and thinner for better penetration and stronger grip The TREX 6300TC Tungsten Carbide Slip On Ice Cleats are lightweight ice grips for boots and shoes that provide tenacious traction and extra stability on ice and snow. One piece design offers grip to prevent slip and fall injuries on the ice Flexible in extreme temps – Tested to remain flexible in temps up to -40°f (-40°C). Ergodyne TREX 6310 Cleat Review | Cleats Report One-piece stretch design – stretchable rubber hugs the toe and heel of a shoe or Boot TREX Ergodyne Trex 6300 Ice Traction Device, Black, L 16754 at stretchable rubber construction won't break in cold temperatures, providing reliable everyday Traction