This is the perfect tool for workers to move more easily and protect their knees when installing tile/wood floors/carpets or any job that requires kneeling. Easy to put on and take off, convenient and practical.feature:Made of high quality materials, durable, strong bearing capacity and long service life.Designed to evenly reduce weight and reduce knee stress while conforming to the contours of the knee.Hook-and-loop straps comfortably hold rolled knee pads with less tension on the back of the knee.The inner lining is soft and comfortable, and the three-wheel base allows 360-degree rotation without lifting from the floor.Easy to put on and take off, convenient and practical.The perfect tool for workers to move more easily and protect their knees when installing tile/wood floors/carpets or any job that requires kneeling.Specification:Material: ABSColor: yellow, red, black (optional)Product size: 295*220*88mm / 11.61*8.66*3.45inPackage size: 300*225*90mm/11.81*8.86*3.54inPackage Weight: 930 g / 2.05 lbsPacking list:1 * Rolling knee pads