This lens protector is an essential accessory to help protect your scope or red dot lens. It includes two interchangeable shields in yellow and transparent. Tools free locking mount, easily bolt-on or remove. Shield cover could be flipped down when necessary. Practical tools for you. What are you waiting for? Specifications: Glass Material: Plexiglass Color: Yellow + Transparent Package Weight: approx. 62g Glass Size: 5 x 5.5cm / 1.9" x 2.1" Package Included: 2 x scopes lens protectors 1 x base mount Note: 1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please in kind prevail.