Check the listing for details. RAP-B-166-GA31 RAM Twist-Lock Composite Suction Mount for Ga.... Color: Black, Condition: New. Listed at 57.94 USD. RAM Twist-Lock Composite Suction Mount for Ga... RAP-B-166-GA31 Genuine RAM Products! The RAP-B-166-GA31 consists of a 3.3 INCHES diameter suction cup twist lock base, double socket arm and high strength composite cradle. The suction cup, twist lock base is designed to have a strong hold on glass and non-porous plastic surfaces, including RAM adhesive disks. Designed into the mount is a 1 INCHES diameter patented rubber ball and socket system with adjustment points at both ends of the socket arm; this with a twist of the arm knob, allows you to move the mount to your optimum viewing position.hardware included Assembly Hardwaresuction size 3.3 INCHES Diametersocket to socket length 3 INCHES ball size B Size (1 INCHES )weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lbmaterials High strength compositepackaging type Retail BagWeight 0.7 lb hardware included Assembly Hardware suction size 3.3 INCHES Diameter socket to socket length 3 INCHES ball size B Size (1 INCHES ) weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lb materials High strength composite packaging type Retail Bag Weight 0.7 lb