Mechanical Keyboards Switch Tester Set 4 Clear Cherry MX Switches Brown Black Blue Red Specification: Material: Plastic Size(L*W*H): 7.3cm x 1.8cm x 2.1cm\/2.9'' x 0.7'' x 0.8'' Contains 4 Clear caps and 4 Cherry MX Switch: Black、 Blue、 Red、 Brown Cherry MX Red - Soft Linear 45g actuation force - Smooth、 no tactile bump. The Cherry MX Red is a lighter variant of the Cherry MX Black linear switch. Cherry MX Black - Firm Linear 60g actuation force - Smooth、 no tactile bump、 The Cherry MX Black is a stiffer variant of the Cherry MX Red linear switch. Cherry MX Blue - Tactile !#!amp!*!amp; Clicky 50g actuation force - Tactile and clicky switch. You can feel the tactile bump and hear the !#!amp!*!quot;click!#!amp!*!quot; that occurs when the activation point is hit. Cherry MX Brown - Soft Tactile 45g actuation force - Softer and lighter tactile bump、 no click. The tactile point is much less pronounced. Feature: A must have kit to try Cherry MX mechanical key switch. Mounted on PCB to simulate actual key feeling. Translucent clear keycaps. Package Included: 1 x Tester