The TREX 6315 Strap-On Heel Traction Cleats are ice grips for boots and shoes with rugged steel plates that turn boot heels into ice picks, leaving the mid-foot free for vehicle operation. Ice traction cleats help save money while preventing slip and fall injuries. These ice grips for boots provide the best in class all-direction traction on ice and snow during the winter months while leaving the toe and mid-foot free. These will fit on the heel of any boot or shoe. Durable webbing with hook & loop strap provides a secure fit and stability for winter work or recreation. Material is lightweight and is small enough to be stored in a pocket or pack when not being worn. Rear reflective accents help make wearers more visible in dark environments. These should fit snugly on your boot or shoe. Use your shoe/boot size to determine the approximate size.