Ergodyne 6300 M Black One Piece Slip-on Ice Cleats Features and Benefits: ONE-PIECE STRETCH DESIGN - Stretchable rubber hugs the toe and heel of a shoe or boot FULL FOOT ICE TRACTION - 8 rugged, heat-treated carbon steel studs line the length of the foot with a thicker under-sole tread and a reinforced toe cap for more durable wear and better grip EASY ON/OFF - Stretchable rubber with a textured interior for a secure fit and large thumb tabs on the heels to make getting on and off easy FLEXIBLE IN EXTREME TEMPS - Tested to remain flexible in temps up to -40F (-40C). Stretchable rubber construction won't break in cold temperatures, providing reliable everyday traction COMPACT SIZE - Lightweight and easy to store, available in multiple sizes and fits over any boot or shoe 6300 M Black One Piece Slip-on Ice Cleats Warranty: Lifetime warranty does not cover abuse