Yaktrax (R) Diamond Grip (TM) provides aggressive traction for all winter walking conditions, from boilerplate ice to backcountry snow and everything in between. The patented diamond shaped beads have hundreds of biting edges that grip in all directions. Made of case-hardened steel alloy and strung on steel aircraft grade cable, they are extremely durable and are ideal for those who frequently encounter transitional surfaces such as rock, gravel, dirt, and bare concrete. Yaktrax Diamond Grip | Black | Small | Christy Sports