The RAM-247U-17 consists of a 1.7" clamp base with 1.5" ball.
Powder Coated Marine Grade Aluminum
1.5" Rubber Ball Size
The "U" in the part number reflects product packaged in poly bag.
|Ball and socket size||Product Type||Material||Vehicle||Mount function||Packaging|
|C size 1.5" (Holds up to 4 lbs)||Base||Powder Coated Marine Grade Aluminum||Forklift/Lift Truck||Flat Edge Clamp||Retail Packaging|