【Standard B Size 1" Ball Mount】 The ball mount features a B-size 1-inch TPU ball with a 25.4mm diameter ball base, allows for connection to any B size 1 inch double socket arm, Compatible with RAM, BRCOVAN,FANAUE Socket Armand motorcycle bike car phone mount holder. | 【Universal 1/4”-20 Female Threaded Hole, Wide Compatibility】 Universal threaded hole, suitable for any devices with 1/4 "-20 screw, solution for a variety of use cases such as combined into double ball heads, extend the double socket arm, mount on the tripod.etc. | 【Anti-slip, water-resistant, Shockproof, Sturdy and Durable Ball】 The B Size 1 Inch ball mount adapter is made of high-quality stainless steel and the surface is covered with non-slip rubber. The special process makes the TPU over-molding ball joint anti-slip, shockproof, water-resistant, sturdy and durable. Perfect for kayak phone holder, scooter phone holder, stroller cell phone holder and other cell phone mount base for long term use. | 【Durability and Reliability, Backed by a lifetime warranty】The connecting post is CNC machined from stainless steel material, which is durable and not easy to be damaged. The threaded hole is 9mm depth to ensures stable connection. 60-Days money back guarantee, Lifetime Warranty by DEKEENSTAR. | 【Package Includes】1 inch Ball Mounts Adapter with 1/4”-20 Female Thread Hole * 1,Plastic Storage Box * 1