Professional shock absorption configurationCell phone mount with 1 inch ball head has shock absorption module, more stable when used with other phone holder parts on bicycle, scooter, ATV/UTV and car accessories, avoiding damage to device due to large vibrations, anti-loosening knob makes your smartphone firmly fixed in the cell phone holder, more comprehensive shock absorption, anti-shaking and anti-loosening provide for more effective protection, make your riding more safer reliable. Compatible with RAM MountsMotorcycle Phone Holder with 1" Ball Head Compatible with RAM mount B Size double socket arm, connects to any cell phone holder accessory that has 1" ball head installation mode, cell phone clip width from 2.55" (65mm) to 3.34" (85mm), supports devices up to 14mm thickness, suitable for 5.5-7 inch cell phones, such as iPhone 14 13 12 11 ProMax, Samsung Galaxy S21 S22 S21+ S22+, OnePlus Ace 10Pro, Google phone, Huawei phone and other smartphones.