Standard / 22.2mm to 31.7mm Bars: TOUGH LOCK Mobile Phone Mount. Grab it tough and hold on to, the unique "VA-S" function reduces shock and vibration. Set of Tough Lock shields to protect from flying debris and sunlight. The set includes the "Tough Lock" smartphone mount, CNC-machined for high precision, and a shield to protect the smartphone from flying objects while riding. High rigidity to withstand hard riding. Equipped with our original rubber mounting system "VA-S". The VA-S system reduces the risk of damage to the smartphone by mitigating the impact of tipping over and vibrations while riding. Easy one-handed attaching, removal, and locking of the smartphone. Tech Spec: Surface Treatment: Anodized aluminum. Materials: Body: High-strength aluminum. Spacer and mounting arm: Plastic.