Protective knee & elbow pads Adjustable straps Molded plastic protective caps R Exclusive, only available at Toys R Us Canada. Help protect from scrapes and bruises with the Knee and Elbow Pad Set from Sport Runner. Perfect for kids cruising on scooters or zipping on skateboards, this set includes two knee pads and two elbow pads with foam cusions and molded plastic caps. Adjustable straps ensure for a tight fit.