LM4L linear motion bearing, smooth movement, high rigidity and low friction . Item: LM4L Linear Motion Bearing . Type: Linear Motion Bushing . Size: 4mm x 8mm x 23mm . Lead Time: 10 to 60 days . Product Origin: Fuzhou, Fujian, China . Shipping Port: Fuzhou, Ningbo, Yiwu, Shanghai . Payment: T/T, L/C