1??COMPATIBLE MODELS: 3D printer hollow linear rail Compatible for VORON2.4, for Voron for Trident 3D Printers, perfectly compatible. 2??HIGH ACCURACY: Linear rail guide kit has high accuracy, low wear, low noise and longer service life. Simple assembly, no need for complicated operation process. 3??HOLLOW DESIGN: Linear rail guide adopts hollow design, make the guide lighter, support high speed printing, stainless steel material, more stable. 4??WITH RUBBER PLUG: MGN12H linear sliding rail guide has two rubber plugs on each side, which can prevent the slider from falling off and make the operation more convenient. 5??APPLICATIONS: Linear rail guide kit is used in semiconductor manufacturing equipment, printed circuit boards, IC assembly equipment, medical equipment, robotic arms, accuracy measuring machines and other small linear motion devices.