This smartphone holder can be attached to bicycles, mountain bikes, motorcycles, etc. Free shipping nationwide, no-comment purchase OK! Convenient for navigation and video recording while cycling. Also useful for touring intercoms, road maps, baby strollers, gym training machines, desks, and kitchens. Especially convenient for food delivery services like Uber Eats! ★Smartphone Size Fits 4.5 to 7 inch smartphones. (60 x 125 to 75 x 165mm, about 15mm thick) Compatible with many smartphones, including iPhones and Androids. Can be used even with a cover on. Compatible models: Many iPhone, Galaxy, Xperia, Google Pixel, etc. ★One-touch Installation Press your smartphone against the button in the center of the holder, and the arms will automatically lock the smartphone instantly. To remove it, push the arms on both sides inward. Convenient for one-handed operation. ★Secure Hold The gear mechanism and strong spring firmly support the smartphone. It won't fall off even on rough terrain, cobblestone roads, or bumpy roads. ★Easy Installation Simply clamp the main unit to the handlebars, bars, stems, etc., and tighten the screws. No installation tools required. Thickness or diameter up to about 4cm. Includes spacers for adjusting the bracket installation. ★Adjustable Angle The neck of the holder rotates 360°. You can move your smartphone to a comfortable viewing angle. ★Usage Scenes Bicycles, road bikes, scooters, mopeds, baby strollers, exercise bikes, desks, pipe shelves, kitchens, cars, etc. 【Product Specifications】 Size: Length 13.5-18.3cm, Width 9.3-11.3cm (product size) Compatible with approximately 4.5-7 inch phones (60 x 125 to 75 x 165mm, about 15mm thick) Bracket for stay: Approximately 4cm in diameter Material: ABS, etc. Color: Black Included items: Main unit, bracket, thickness adjustment rubber (2mm thick) x 2 【Shipping】 After confirming payment, we will ship within 1-3 days, wrapped in bubble wrap, via Yu-Packet. Delivery is expected to your home post. If it doesn't fit in the post, it will be hand-delivered.