Extensive compatibility and saving money: compatible with 4.0"-6.5" smart phones. Any phone size among them will be applied. This product is a combination of 2 separate items: a mobile phone holder for bicycles and a wristband/armband holder for running. When you buy one, you will own two of them. How great $ 360 rotatable firm and safe mobile phone holder suitable for bicycles and motorcycles. A universal bicycle and motorcycle handlebar holder suitable for all mobile phones. The silicone seal makes it flexible to adapt to handlebars of different sizes. Freely adjust any angle to adapt to full accessibility, simple and safe operation. $ Detachable and sturdy grip to hold the phone holder. The advantages of applying silicone materials are soft but not fragile, stretchable but not slippery. The ends of the bracket are firmly hooked on the four corners of the phone, so that the phone cannot escape. $ Upgraded version of comfortable non-angle wristband/armband, suitable for running, fitness and gym exercise. The free extension strap with velcro is made of Lycra and neoprene, breathable and non-sticky, lightweight and comfortable to wear. There is an internal pocket for storing credit cards and keys. $ Safety protection and shock absorption: Unlike plastic brackets, flexible silicone absorbs and reduces part of the vibration. When you are cycling, running or doing high-intensity exercise, this bicycle phone holder can withstand strong vibrations and shocks. In addition, the soft silicone holder will not cause any damage to your precious phone.