Anti-slip and shockproof: TPU overmolded M10 ball head features an ergonomic design that fits securely with the double socket arm, ensuring a tight and stable connection. The soft and elastic ball head base helps absorb impact, providing reliable performance even when riding at high speeds over rough terrain. The ball head allows 360-degree rotation, enabling flexible horizontal and vertical adjustment of the phone holder for optimal viewing angles. Compatible with RAM bracket: 1-inch ball head adapter with M10x1.25 studs fits RAM B-size double socket arms and motorcycle phone mounts. Supports any mounting accessory with a 1-inch ball pattern. The 1-inch ball base is compatible with M10x1.25 threaded posts found on motorcycle rearview mirrors, electric vehicles, ATVs, and similar devices. Installation specifications: M10x1.25 ball head includes a 1-inch TPU ball and an M10x1.25 threaded steel post. Ball head diameter is 25mm. The threaded post connects to any standard female thread on cameras, camcorders, and other devices. Ensure the receiving threaded hole matches M10x1.25 for proper installation. Color: Black Material: Stainless steel Package Contents: 2 x Ball heads Note: Light reflection and differences in display settings may cause slight variations between the product color shown and the actual item. Measurement may vary by +/- 1-3cm.