Auxiliary profile right-angle installation, making the right-angle installation of the profile frame machine closer to the right angle, suitable for all kinds of profile DIY machines. There is a hand-tightening profile fixing mechanism, which is convenient for extruded profiles to fit more tightly, making the profile installation accuracy higher. CNC aluminum alloy processing, anodized surface, high processing precision, strong structure. Provide a way of screwing and fixing profiles by hand, which is more friendly to new users of 3d printers. Please Notes: Suitable for conventional negative tolerance profiles, the tolerance is -0.04mm width. Name: CNC All metal Right-Angle Ruler Scope of application: 2020 profile: Such as for VORON 2.4, Trident, Legacy, Vzbot, Rigrat... Colour:black+red Material:Aluminum alloy 6061-T6 Size:35 x 7 x 35mm Package Contents: 2 x profile installation aids 3 x nuts (random colors, don't accept the specified color) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.