Perfect for roofing; flooring; gardening; or any task that requires you to spend prolonged periods of time on your knees.. Contoured to fit your knees properly ensuring a comfortable fit. One size fits most. . Non-skid outer material for surface protection; as this unit is mar resistant with anti-slip protection.. Neoprene elastic strap that securly fastens the knee pad in place.. Foam lined for optimal ergonomics and comfort. These TWXpert Leatherette and Neoprene Work Knee Pads are contoured to fit your knees properly ensuring a comfortable fit and provide the perfect protection by removing any excess pressure on the knees. They are washable; durable; non-marking and easy to put on; adjust or take off with their incorporated tough hook and loop strap. Perfect for roofing; flooring; gardening or any task that requires you to spend prolonged periods of time on your knees.