Feature:1. APPLICABLE MODELS: This limit switch is specially used for Ender 3, for Ender 3 S, for Ender 3 Pro, for Ender 3 V2, for Ender 3 Maximum, for CR 10, for CR 10 V3, for CR 10 S4 and more 3D printers.2. PERFECT SUBSTITUTE: This is a perfect replacement part for your 3D printer, which can directly replace your broken limit switch.3. 5 PCS SET: The set contains 5 pcs end stop limit switches, 3 Pin, NO NC controls, with the rated load of AC 250V 1A.4. PLUG AND PLAY: This limit switch with cable is compact in size, convenient to install, plug and play, easy to use.5. HIGH RELIABILITY: Adopt flame retardant material and special technology, with high safety and great stability, ensures excellent performance of your printer.Specification:Item Type: End Stop Limit SwitchMaterial: PCBPower Supply: 3 PinSwitch Type: Normally openAdaptation: For Ender 3, for Ender 3 S, for Ender 3 Pro, for Ender 3 V2, for Ender 3 Maximum, for CR 10, for CR 10 V3, for CR 10 S4 and other appropriate 3D printers.Package List:5 xEnd Stop Limit SwitchNote:General printer DIY system requires at least three optical switches.