This product is made of high quality material. It is characterized by lightweight, high hardness, non-deformable, anti-corrosion and oxidation resistance. A great choice for you.Features: Made of high quality aluminum alloy material, this product is sturdy and durable. With 55-100mm gripping range, it has a wide range of application. Easy to install firmly and not easy to fall off. Lightweight, high hardness, non-deformable, anti-corrosion and oxidation resistant. 360° rotation after it is installed, simple in use and convenient as well. Specification:Condition: Brand NewItem Type: Bike Phone HolderMaterial: Aluminum AlloyOptional Color: Black, Red, Titanium, Black + RedGripping Range: 55-100mmLength: Approx. 50-100mm / 2.0-3.9inchWidth: Approx. 50mm / 2.0inchClamp Dia: Approx. 31.8mm / 1.3inchWeight: Approx. 157g / 5.5ozPackage List: 1 * Bike Phone Holder 1 * Wrench 2 * Adapters (25.4mm & 22.2mm) 1 * Adhesive 2 * Adhesive Tapes