Nylon and Copper - Good laasticit, good residence of the wear of old rollers - game of 8 rollers, interchangeable several times, spare spices in a single order dimensions - Diamtre of the wheels - 25 mm, wheel steer: 5.5 mm, total length : about 32 mm a perfect replacement - Over time, the rollers will have to be replaced. A screwdriver is all that is necessary for the RPAIATION is suitable for - for glass door openings: 10 ~ 12 mm; 12 mm Recommend. Paker: 4-6 mm. For shower doors and massage cabins, baths, jacuzzis or other furniture. To replace a defective bearing. Shower door rails guides. Bound with screw caps. Mcanism comes out, also suitable for curved doors. With plastic screws and caps Rollers/cursors/wheels/Purcha of individual shower door Roller spare shower door adapts most of the shower walls adapts most of the shower walls, shower walls and hammams