Replacement Post Caps/Rubber Tips for RAM X-Grip Holders, Set of 4, w/Cement | eBay
RAM® X-Grip® Large Phone Mount with Tough-Claw™ Small Clamp Base - Lon – RAM Mounts
Amazon.com: RAM Mounts X-Grip Phone Mount with RAM Twist-Lock Suction Cup RAM-B-166-UN7U with Medium Arm for Vehicle Windshields : Cell Phones & Accessories