Check the listing for details. RAM-B-202-G3U RAM Round Plate with Ball & Mounting Hardware.... Color: Black, Condition: New. Listed at 25.94 USD. RAM Round Plate with Ball & Mounting Hardware... RAM-B-202-G3U Genuine RAM Products! The RAM-B-202-G3 consists of a 1 INCHES diameter rubber ball connected to a flat 2.5 INCHES diameter base and the hardware needed to bolt the round plate to a Garmin StreetPilot 7200 or StreetPilot 7500.hardware included (2) #6-32 x 3/4 INCHES Machine Screws(2) #6-32 x 5/8 INCHES Machine Screws(4) #6-32 Nut Insertshole pattern 4-Hole AMPS: 1.181 INCHES x 1.496 INCHES 3-Hole 120-Degree: 1.812 INCHES Diameterball size B Size (1 INCHES )weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lbmaterials Marine-grade aluminumpackaging type Poly BagWeight 0.21 lb hardware included (2) #6-32 x 3/4 INCHES Machine Screws(2) #6-32 x 5/8 INCHES Machine Screws(4) #6-32 Nut Inserts hole pattern 4-Hole AMPS: 1.181 INCHES x 1.496 INCHES 3-Hole 120-Degree: 1.812 INCHES Diameter 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 0.21 lb