1. Weight: 228 grams for handlebars and 201 grams for rearview mirrors 2. Dimensions: length 80 mm, width 65 mm, can be extended to 105 mm 3. Material: aluminum alloy 4. Applicable mobile phones: 5.5-10.5 cm wide mobile phones (4.5-6.8 inches) 5. Applicable models: handlebar diameter is less than 30 mm, rearview mirror aperture is less than 10 mm 6. Features: beautiful and practical, waterproof and rainproof, frosted technology, tilt angle adjustable by 180 degrees, with shock-absorbing gasket, no damage to the phone, reinforced base, stable and anti-shake, simple and convenient installation, strong and durable