Features: 100% brand new and high-quality. It can work well at a high speed and will not break. The deep groove rollaway provides more accurate pathway for the balls. It is made of well-made bearing steel that can withstand high pressure. Double-sealed plate provides better working environment in operation. Specification: Holder Material:Steel Plate Application:General Scroll Column:Single Groove Type:Deep Groove Bearing Material:Bearing Steel Scroll Type:Ball Angle:15 Degree Sealed Cap:Double Sealed Style(Optional)Inner DiameterOuter DiameterThickness 6700-2RS10mm/0.39in15mm/0.59in4mm/0.16in 6701-2RS12mm/0.47in18mm/0.71in4mm/0.16in 6702-2RS15mm/0.59in21mm/0.83in4mm/0.16in 6703-2RS17mm/0.67in23mm/0.91in4mm/0.16in 6704-2RS20mm/0.79in27mm/1.06in4mm/0.16in Package List: 10*Ball Bearing Note: 1. As different computers display colors differently, the color of the actual item may vary slightly from the above images. 2. Please allow 1-3mm differs due to manual measurement. Package List 1100% brand new and high-quality. 2It can work well at a high speed and will not break. 3The deep groove rollaway provides more accurate pathway for the balls. 4It is made of well-made bearing steel that can withstand high pressure. 5Double-sealed plate provides better working environment in operation.