Features: Experience precise Key Switches Testers, ultimatedly tool for mechanical keyboard enthusiasts to find their switches feel. This set offering a comprehensive of switches testing, ensuring you make an informed for your typing comfort. For gamers, programmers, and writers who demand consistent keystroke performances and are on the quests to customize their mechanical keyboards. Our mechanical keyboards Switches Tester with optimize their keystrokes for efficiency and comfort. Remarkablely stress reduction effectermeterror: through simple pressing movements, it can effectively release stress and tension, help users regain calm. Specifications: Versions ：4 key with light/ without light ； 9 key clear/ clear black version Optional Size about 4 key 12cm/4.72in ;9 key 10x10cm/3.94x3.94in Component: ABS Package Includes: 1Set Switches Tester note: Please allow 1-2cm errors due to manual measurement. Pictures may not reflect actual color due to different monitors.