ToolUSA Adjustable Hard Cap Knee Pads And Elbow Pads In Black & Yellow: SF-30213 Made of a cushioned pad integrally made of injected plastics with curved upper and lower layers On top of the cushioned pad, yellow plastic rib plates protect for heavy duty protection Adjustable elastic straps and loop and pile fasteners hold on the pads and fit up to a large adul Fits leg sizes up to 25 inches and arm sizes up to 16 inches Great for sports, skateboarding, biking, cleaning, industrial use, warehouse, & more!