Made of high-quality aluminum alloy, it provides a stable mount for attaching accessories such as scopes. The 11mm to 20mm Mini Aluminum Alloy Adapter Mount is designed to easily convert an 11mm rail to a 20mm rail. Each package contains 2 adapter mounts, offering a convenient and cost-effective solution for rail conversion. Ideal for enhancing the versatility and optimizing accessory compatibility. Compact and lightweight, easy to carry. Features: Durable, corrosion-resistant, easy to install. Material: Aluminum Alloy Type: Scope Mounts & Accessories Color: Black Package Contents: 2 x Bracket Note: Light reflection and different display settings may cause slight variations in color compared to the actual item. Measurement may vary by +/- 1-3 cm.