Check the listing for details. RAM-238-379-372437U RAM Drill-Down Heavy Duty Mount for weBoost.... Color: Black, Condition: New. Listed at 65.94 USD. RAM Drill-Down Heavy Duty Mount for weBoost... RAM-238-379-372437U Genuine RAM Products! This weBoost mounting kit includes a 3/8 INCHES -24 X .375 INCHES threaded RAM Tough-Ball that screws into thread adapter of the weBoost antenna, a C size medium length socket arm and a C size RAM Diamond Ball base for flat surface drill-down mounting such as a rear bumper, spare tire carrier, or antenna bracket. The adjustability of the RAM Mounts system allows you to collapse the antenna while not in use, as well as extend the reach of the weBoost antenna if mounted in a tight space. This weBoost antenna mount is compatible with the Drive Reach OTR and Drive X antennas making this the ideal mounting solution for off-road vehicles and semi-trucks.hole pattern 2-Hole AMPS 1.912 INCHES thread pitch 3/8 INCHES -24 X .375 INCHES plate size 2.43 INCHES x 1.31 INCHES ball size C Size (1.5 INCHES )weight capacity Standard Use: 4 lbsHeavy-Duty Use: 3 lbsmaterials Marine-grade aluminumHigh strength compositepackaging type Poly BagWeight 1.02 lb hole pattern 2-Hole AMPS 1.912 INCHES thread pitch 3/8 INCHES -24 X .375 INCHES plate size 2.43 INCHES x 1.31 INCHES ball size C Size (1.5 INCHES ) weight capacity Standard Use: 4 lbsHeavy-Duty Use: 3 lbs materials Marine-grade aluminumHigh strength composite packaging type Poly Bag Weight 1.02 lb