Features: brand new and high quality for JWICK nylon black V2 linear switches 10PCS /70PCS/ 90PCS optional set. 5 feet linear axis switches for mechanical keyboard Silent sound triggers fast. Shaft core lubricated Primary color spring, 58.5g bottoming force (Bottom Out) Switch structure operating life: over 50 million times Specifications: Type: Linear Black Shaft Color: Full Nylon Black for Shell, Black Shaft Travel: 4mm Travel 2mm operating Material: Full Nylon for Shell, POM Shaft Life: more than 50 million times Features: Five-legged linear Quantity:10PCS/ 70PCS/ 90PCS Set (Optional) Package Includes: 1 Set x Switches note: Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. Monitors are not calibrated same, item color displayed in photos may look slightly different from the actual item.