1.perfect OEM service available 2.high quality & low price 3.accord with ISO 9001 quality standard 4.prompt delivery 1. High precision and rigidity linear bearing2. Easy to assemble and replace3.specification: Fw: 6mm,8mm D:12mm,15mm B:19mm,24mm 4.Application:sliding devices,motor and so on.5.Chinese codes:LB61219 AJ,LB 81524 AJ