Check the listing for details. RAM-B-408-75-1-A-238U RAM Torque Medium Rail Base with Diamond Plat.... Color: Black, Condition: New. Listed at 55.94 USD. RAM Torque Medium Rail Base with Diamond Plat... RAM-B-408-75-1-A-238U Genuine RAM Products! Take your mobile entertainment on the road with the new RAM Torque handlebar and rail mounting base. We've paired a B-size 1 INCHES ball base that accommodate bars 3/4 INCHES to 1 INCHES in diameter with a B-size short length arm and diamond base so that you can connect any of the RAM Mounts cradles or anything else with the AMPS hole pattern. Sizing inserts are included to provide a snug fit and offer additional protection for the rail. The mount utilizes nylon-insert lock nuts to prevent loosening in high vibration environments. This low-profile mount is the perfect way to secure your personal electronics and small accessories in any high-vibration environment.hardware included (2) #10-24 x 1 INCHES Socket Head Cap Screws(2) #10-24 Nylock Nuts(2) .75 INCHES Composite Bushings(2) .9 INCHES Composite Bushings(1) 88.9mm Rubber Strip(1) 5/32 INCHES Hex Key Wrenchclamp range .75 INCHES - 1 INCHES diametersocket to socket length 1.75 INCHES hole pattern 2-Hole AMPS: 1.912 INCHES ball size B Size (1 INCHES )weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lbmaterials Marine-grade aluminumpackaging type Poly BagWeight 0.58 lb hardware included (2) #10-24 x 1 INCHES Socket Head Cap Screws(2) #10-24 Nylock Nuts(2) .75 INCHES Composite Bushings(2) .9 INCHES Composite Bushings(1) 88.9mm Rubber Strip(1) 5/32 INCHES Hex Key Wrench clamp range .75 INCHES - 1 INCHES diameter socket to socket length 1.75 INCHES hole pattern 2-Hole AMPS: 1.912 INCHES ball size B Size (1 INCHES ) weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lb materials Marine-grade aluminum packaging type Poly Bag Weight 0.58 lb