RAM® Square Post Clamp Base for Posts up to 2.5" Wide - B Size RAM-B-149Z-GA31U you're going to love this

you're going to love this easy to install knob kit for the RAM Tough-Tray™

standard double socket arm with locking knob

long double socket arm

The RAM® Quick-Grip™ XL Phone Mount with RAM® Vibe-Safe™ & U-Bolt Base - Short (RAM-B-149Z-A-PD4-462) is a combination of the RAM® Quick-Grip™ XL Phone Mount and the RAM® Vibe-Safe™—our vibration damping accessory is designed to protect electronic devices from a wide range of vibration frequencies

25" in diameter and high strength composite cradle

RAM® Square Post Clamp Base for Posts up to 2.5" Wide - B Size RAM-B-149Z-GA31U you're going to love thisThe RAM B 247U 25 consists of a 2. 5" clamp base with 1" ball.