The Official Creality Limit Switch End Stop 3pcs is a set of end stop switches designed for 3D printers, specifically compatible with Ender 3 and En printers. Made of copper material, this unit weighs 0.04 pounds and comes in a package dimensions of 7.2x2.83x0.47 inches. With a color of 3 pieces, this end stop switch set is essential for precise control and stopping of the printer during operation, providing a reliable and efficient printing experience.