Rear Left Right Window Regulator Fit For Golf OEM : 5K4839461,5K4839462 The surface of the window regulator support is made of cold-rolled steel plate, which is durable and has good seismic. The product design is adapted to the vehicle's shape, and after installation, it fits perfectly with the body lines, achieving a balance between aesthetics and protective performance. Made following stringent specifications by an manufacturer,Each window regulators are tested by cycling them up and down thousands of times in an actual vehicle door to ensure a long,trouble-free service life., Manufacturer: PLYHNDRC