High quality and Robustness using Aluminum and Chrome Simplicity and Reliability of Bolt Tightening 360 Degree Rotation by Ball Joint and Freely Adjustment in All Direction The connector for Connecting the ball on the body and The ball on the handlebar mount must be tightened with Tightening-bolt. lf you do Not tighten strongly, the Body can flow down by Vibration during operation. How to use. 1. Attach the mount to the handlebar. 2. Connect Handle bar Mount and Holder Body by Connector and tight strongly the Bolt. 3. Mount the Smartphone on the Body and tight the Fixing-bolts. Unlike other products, very strong and high quality Please protect your phone The more expensive the product, the more luxurious and durable Products are handmade directly from Korea