Compatible with all 3D Printer:The Mini Switch is For -3/-/-3 Pro/-3 V2/-3 Max/-10/-10 V3/-10 S4 and other suitable 3D Printers.Easy to install:Normally 3Pin control mechanical limit switch for 3D Printer, Small and size, easy installation, just plug and playFeatures: switch terminals are fire-retardant and technology. Rated load: AC 250V 1AGenerally, the printer DIY system needs at least three optical switches.Colour:Photo ColorMaterial:plastic+metalPackage Contents:10 x Mini Limit SwitchesOnly 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.