Features: Having clear and accurate aiming effects, improving shooting accuracy and targets locking ability. Made of durable materials, it has good impact resistance and scratch resistance, and is not easily damaged after long-term use. Adapt to a 20mm base for easy adjustment and installation according to actual needs. Equipped with yellow and white two lenses, can be selected according to personally habits. The baffle can be conveniently folded and stored, making it easy to carry and store, saving space. Suitable for shooting enthusiasts, trainers, polices officers, hunter and other groups who need to accurately targets. Suitable for various shooting occasions such as outdoor shooting competitions, tactically training, hunting activities, etc. Specifications: Material: Aluminum Alloy Base Overall Size: 70x50mm/2.75x1.97inch Lens Size: 55x50mm/2.16x1.97inch Package Includes: 1x White Guard 1x Yellow Guard 1x 20mm Rail Mount 1x Wrench note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.