100% Brand new and high quality It is used for the design of linear motion products.It can cooperate with linear bearing to ensure excellent sports performance under high load or long stroke occasions. 100% Brand new and high qualityIt is used for the design of linear motion products.It can cooperate with linear bearing to ensure excellent sports performance under high load or long stroke occasions.Model SC20UUShaft diameter 20mmColor As shown in the pictureMaterial AluminumDimension Approx.50X54X41mm(LWH)Included 4 X SC20UU 20mm Aluminum Linear Motion Ball BearingNote Light shooting and differnent displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/ 1 3 cm.