The Klein Tools Tradesman Pro Kneeling Pads are offered in two convenient sizes to help professionals stay comfortable even after long hours. The standard model (No. 60135) is 21" wide by 14" long while the large model (No. 60136) is 28" wide by 16" long. Both models feature 1" thick NBR foam to provide knee protection designed to fight fatigue. The kneeling pads have a built-in handle for convenient transporting or storing and are for indoor or outdoor use.