Check the listing for details. RAM-B-149Z-2U RAM ATV/UTV Double Ball Rail Mount.... Color: Black, Condition: New. Listed at 57.94 USD. RAM ATV/UTV Double Ball Rail Mount... RAM-B-149Z-2U Genuine RAM Products! The RAM-B-149Z-2U consists of a steel strap base, u-bolt bases, double socket arm and diamond adapter base. The diamond adapter base has a hole pattern that matches the industry standard AMPS hole pattern and will connect to a large variety of RAM Mount and third party cradles. Designed for a clean installation, the RAM strap mount will accommodate most common roll bar sizes on UTV's, allowing for the placement of the RAM rubber ball base. This mount can also be attached to smaller diameter handlebars on ATVs using the included hardware. With the ball base in place, you have the foundation for mounting everything from GPS Devices, RAM Aqua Boxes, Spotlights and Radios.hardware included (1) M5-.8 x 25mm Machine Screw(1) M5-.8 x 18mm Machine Screw(1) Strap Clamp Adapter(2) 1/4 INCHES -20 x 1 INCHES Machine Screws(2) 1/4 INCHES -20 Nylock Nuts(1) Zinc Worm Drive Strap Clamp(1) 6 INCHES Rubber Strip(1) 1/4 INCHES -20 U-Bolt for .5 INCHES - 1 INCHES Rails(1) 1/4 INCHES -20 U-Bolt for 1 INCHES - 1.25 INCHES Rails(2) Rubber Caps(1) U-Bolt Spacerclamp range U-Bolt: .5 INCHES - 1.25 INCHES diameterStrap Clamp: 1.57 INCHES - 3.15 INCHES diametersocket to socket length 3 INCHES hole pattern 2-Hole AMPS: 1.912 INCHES plate size 2.43 INCHES x 1.31 INCHES ball size B Size (1 INCHES )weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lbmaterials Marine-grade aluminumHigh strength compositepackaging type Poly BagWeight 0.9 lb hardware included (1) M5-.8 x 25mm Machine Screw(1) M5-.8 x 18mm Machine Screw(1) Strap Clamp Adapter(2) 1/4 INCHES -20 x 1 INCHES Machine Screws(2) 1/4 INCHES -20 Nylock Nuts(1) Zinc Worm Drive Strap Clamp(1) 6 INCHES Rubber Strip(1) 1/4 INCHES -20 U-Bolt for .5 INCHES - 1 INCHES Rails(1) 1/4 INCHES -20 U-Bolt for 1 INCHES - 1.25 INCHES Rails(2) Rubber Caps(1) U-Bolt Spacer clamp range U-Bolt: .5 INCHES - 1.25 INCHES diameterStrap Clamp: 1.57 INCHES - 3.15 INCHES diameter socket to socket length 3 INCHES hole pattern 2-Hole AMPS: 1.912 INCHES plate size 2.43 INCHES x 1.31 INCHES ball size B Size (1 INCHES ) weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lb materials Marine-grade aluminumHigh strength composite packaging type Poly Bag Weight 0.9 lb