Replacement door wheels with anti collision block and screws are finely crafted with a smooth burr surface, delivering a tight fit on all parts and allowing the wheels to slide smoothly on rails without jams. With the basic mounting parts included, installation and replacement are easy. Simply remove the old rollers, screw in the ones and the anti collision block using a screwdriver, and then adjust the height for a fit. The materials are corrosion resistant and rust resistant, offering a strong load bearing capacity. You can expect smooth sliding and long lasting durability. Versatile and suitable for a wide range of applications, including display cabinets and storage cabinets, reptile feeders, nightstands, dressers, organizers, and shower room doors. Use scenarios Replacing wheels on a display cabinet door to restore quiet, smooth operation in a showroom or home. Upgrading a reptile feeder enclosure or terrarium door to ensure reliable, jam sliding. Installing on a bathroom shower door or other moisture prone cabinet to improve durability and glide performance.