Features and Benefits: Clicky keychain with secure lobster clasp in a clear hard plastic housing. Perfect for any mechanical keyboard lover.For Switches have quickly become one of the most sought after names in the keyboard community. For Switches use copper click leafs and softer plastic stems, making for an unparalleled, typing experience. For produces a secure fit for any keycaps and all stems are compatible with MX housing, letting you pick from the wide of available keycaps. For MX Blue - Clicky 55g, For MX Black-Linear 55g For MX Red-Linear 45g, For MX Brown- Tactile 45g Specifications Type: Keychain Mechanical Keyboards Switch Tester Switch Model: For MX Blue Switch,For MX Brown Switch,For MX Black Switch,For MX Red Switch Construction: Clear base Lobster clasp rope Switch Tester Body Clear keycap Material: acrylic Color: Blue Without LED light Size:Length: 2cm/0.8 inch Width: 2cm/0.8 inch Height: 2.8cm/1.1 inch Package Contents: 1 x switch tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.