The ROCKBROS helmet mirror offers enhanced safety thanks to its sturdy aluminum bracket and shatter-resistant, high-resolution mirror surface. 360-degree adjustment and a flexible, foldable handle provide a stable and wide viewing angle, allowing for greater control of the road. The innovative silicone strap allows for secure attachment without scratching the helmet or leaving adhesive residue. When not in use, the mirror can be easily removed, and its versatility means it fits over 90% of bicycle helmets available on the market. The aluminum mirror bracket provides maximum adjustability, and the 360-degree rotation of the mirror provides an excellent rearview view, which is extremely practical in a variety of riding conditions, whether on a road bike, mountain bike, or with a child's helmet. Thanks to its lightweight design, the mirror weighs just 36g, making it a virtually unnoticeable addition to everyday rides. The adjustable 11.5-inch aluminum bracket provides stability while minimizing the product's weight. A convex mirror provides a wide field of view, which increases road safety, but may slightly distort distances, while a flat mirror offers a more realistic image, albeit with a narrower viewing angle. Product details: Weight: 100g Package dimensions: approximately 32.4 x 8 x 3.4 cm Special Features: Lightweight Design Mounting: Mounting on a silicone strap Mounting type: Manual, universal Shape: Round Lens Curvature: Convex