Description:Low noise makes it possible to give you a quiet working environment. The wide range of applications allows it to be used in a variety of workplaces.Professional and exquisite workmanship make it have low friction and high precision. And the electroplated surface makes it resistant to oxidation and abrasion.Made of bearing steel material, it is very durable to use.The length of this product is 33cm.It is used to manufacture semiconductors, printed circuit boards, IC packages, medical equipment, robotic arms, precision encoders and other small linear motion equipment.Item Name: GuideMaterial: Bearing SteelFeatures: Wide Application, Multi-purpose, Anti-rustSize Details: Length: 33cm/12.99" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Hold the roller during the disassembly process to prevent the ball from accidentally falling.The delivery does not include printouts.Reminder:When touching the guide rail, please wear gloves to avoid contact with wet hands and cause rust.Package Includes:2 x 330mm MGN12H Linear Guides3 x MGN12 Linear Sliding Guide Blocks (2Pcs Long, 1Pcs Short)4 x 8mm T-nuts2 x M3 Lock NutsN x Spare M3 Screws (Random Quantity)