Description: The optical endstop is a reliable endstop / switch solution for any type of 3D printers and other CNC and/ or 3D tools. Optical Limiting Optical Switch 3D Printer Switch Transmission And Supporting the Use of RAMPS 1.4 Plate The optical endstop is a reliable Endstop / Switch Solution For 3D Printer RAMPS 1.4 100% Brand new and high quality. Specification: Item Size: 30x10mm Cable Length: 510mm Package Includes: 1x Optical Endstop 1x Cable