Description: 100% brand new and high quality LM8UU 8mm Linear Ball Bearing Bush Bushing Linear bearing ball cage, hardened coat of both ends ring Made of carbon chromium bearing steel, safe and reliable Ball in the cage loop to run a smooth ball guide surface to ensure stability even if high-speed Model: LM8UU Shaft height: 23mm Shaft inside diameter: 8mm Shaft outside diameter: 14mm Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item.Please understand, Thank you. Package includes: 10 x LM8UU 8mm Linear Ball Bearing Bush Bushing