Function: T-track to find and fix 30 tracks in any position. Suitable for many carpentry and metalworking applications. Durable material: T-track guide rail stops are made of high quality aluminum alloy, with high hardness, resistance to wear, corrosion resistance and long service life. Type: Miter Rack. Guide rail stopper for 30 mm stopper. The package includes 2 miter stops. Easy to use: when using, just place this beveled guide rail stopper on the sliding track, press the guide rail stopper length guide in the desired position and then set the T-stopper on the fixed stopper. Scope of application: the miter track stop is suitable for T-slots, T-tracks. The T guide rail can help limit the length of the slide. It is also ideal for attaching appliances and fixtures.