Korkers CastTrax is an ultra durable cleated overshoe product that provides sure-footed traction on mossy rock, ice and slick terrain. Quick release buckle & strap system for easy on/off.36 replaceable durable threaded carbide spikes per pair placed under toe, heel and ball of foot. Allows for customization and extends the life of the product. Molded rubber walls at toe, heel, and side provide secure fit. Combination of aggressive rubber lug & carbide spike pattern provides traction on any surface. Includes 10 additional carbide replacement spikes & 1 buckle.