RAM Double Ball Mount with Hardware for Garmin GPSMAP + More

OVERVIEW The RAM-B-101-G1U consists of a medium lenght B-size arm with two 2.5" diameter round plate with universal AMPS hole pattern and the hardware needed to attach a Garmin StreetPilot III or a Garming GPSMAP 172-250. HARDWARE INCLUDED (4) #6-32 x 5/8" Machine Screws(4) #6-32 x 7/8" Machine Screws(4) #6-32 x 3/8" Machine Screws(4) #6-32 Nut Inserts PRODUCT DIMENSIONS Overall Height: 5" SOCKET TO SOCKET LENGTH 3" HOLE PATTERN 4-Hole AMPS: 1.181" x 1.496"3-Hole 120-Degree: 1.812" Diameter BALL SIZE B Size (1") WEIGHT CAPACITY Standard Use: 2 lbs.Heavy-Duty Use: 1 lb. MATERIALS Marine-grade aluminum PACKAGING TYPE Poly Bag WEIGHT 0.58 lb. MPN:  RAM-B-101-G1U