Brand: RAM Mounts Manufacturer's Part Number: RAM-B-367BU Part Type: Mobile and Media Device Mounting Accessories Product Line: Ram Mounts Grab Handle/Handlebar Ball Adapter Bases Summit Racing Part Number: RMI-2993 UPC: 793442939099 Mobile Device Mounting Accessory Type: Handlebar clamp mount Ball Diameter (in.): 1.00 Quantity: Sold individually. Notes: Mounting hardware not included. Ram Mounts Grab Handle/Handlebar Ball Adapter Bases Ram grab handle bolt adapter bases are ideal for installing RAM mounts on a grab handle， or any motorcycle with an M8 threaded bolt. With a hollow center， you can feed an 8mm bolt or smaller to screw into your vehicle's grab handle for a stable mounting base with no drilling required. Keep your windshield clean， and your phone mount out of the way with Ram Mounts grab handle/handlebar ball adapter bases for phones， GPS devices， GoPros， and more. For motorcycles， simply place our easy to install ball base onto the motorcycle handlebar top clamp and you're done. After that， a world of mounting possibilities opens up. Any motorcycle， or vehicle， which employs an 8mm bolt or smaller on its structure is compatible. A smaller bolt can be used， though the load capacity decreases with the bolt size.