Normally 3Pin mechanical limit switch for 3D Printer. Compatible with -10 Series, , or other 3D printer. Small and compact size, easy installation, just plug and play. 100% limit switch. A good accessory will work perfect with your 3D printer. Type: Limit Switch (3pin) Suitable: For -10 Series and Max Voltage: 250V Line length: 1m Cable: random color , don't accept the specified color Colour:Black Material:Plastic Package Contents: 6x Limit Switch With Cable 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.