Multifunctional sliding knee pad Rolling Knee Pad, convenient and labor-saving universal wheel to move woodworking kneeling padDescriptions:1.With the push of a button, you can go from Knee Blade to knee pad.2.Designed to evenly displace weight and lessen pressure on the knee, while fitting the of the knee. Specifications:Colour: Red/Black/Yellow( The default is red, you can leave a message in black or yellow )Material: Plastic + metalSize: 29.5*22*8.8cm Package Included:1 * Rolling Knee Pad