Made of high-strength plastic material, long for service life and wear-resistant. High carbon steel bearings, high load-bearing, smooth and stable. Height: 11mm. Material: nylon+steel. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
This product would be ideal for fitness equipment that requires long-distance moving or high-impact workouts in a durability-sensitive environment.
