Made of high-quality nylon and aluminum alloy, this helmet mount is durable and not easy to break. Includes multiple sets of screw bolts and screw nuts for easy installation onto the back of your helmet. Solid color design easily matches the color of your outdoor-style helmet. Compatible with tactical helmets; functions as a helmet accessory mount. Constructed with aluminum alloy and nylon for reliable performance. Name: Helmet Base Accessories Applicable Gender: Unisex – Suitable for Men and Women Note: Product appearance, color, and printed characters may vary slightly between batches, but this does not affect functionality. Color: Mud Material: Nylon + Aluminum Alloy Package Contents: 1 x Helmet Base 1 x Screw Installation Kit Note: Light reflection and differences in display screens may cause slight variations in color compared to the actual product. Measurement error allowed is +/- 1-3 cm.