Features: Acrylic mechanical keyboard switches tester base delivers precise tactiles feedbacks and solves durability issues of traditional testers, for enthusiasts seeking keypress evaluations. transparents acrylic construction enables visual inspection of switches mechanisms while supporting multiple switches type for comprehensive compatibility testing. for mechanical keyboard hobbyists, builders, and office users who demand typing experiences through switches comparison and customization. for home workshops, gaming setups, or professional workplaces where quick switches testing and portability matter during keyboard assembly or maintenance. Engineered with impacts resistant acrylic materials, this tester withstands frequent travel and long use while maintaining structural integrity. Specifications: Materials: Acrylic Type: 12 holes, 8 holes, 6 holes, 4 holes(optional) Package Includes: 1Set Acrylic Shaft Tester Base note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.