Homesmiths Nylon Casters give your door a smooth rolling and have a 34 inch (19.1 millimeter) diameter nylon ball bearing roller with 38 inch (9.5 millimeters) threaded hex hub. Made with high-quality nylon, it maintains a smooth balanced roll and doesnt pick up dirt from the floors. It is very easy to install and immediately makes the slide easy. You can use it for installation in sliding shower doors or even tub enclosures. The wheels are very easy to clean. (1). The Roller is 34 inch. (2). Material: Nylon Wheel. (3). For Tub Enclosures and Sliding Shower Doors. (4). Easy to install
