Check the listing for details. RAP-B-299-4U RAM Stubby Cup Holder Ball Base.... Color: Black, Condition: New. Listed at 43.94 USD. RAM Stubby Cup Holder Ball Base... RAP-B-299-4U Genuine RAM Products! The RAM Stubby cup holder base is a low-profile option of our cup holder mounting base. The durable composite shell construction and flexible support fins can be trimmed to size make this cup holder base a portable and versatile solution. The mount is designed with a patented RAM 1 INCHES diameter rubber ball. The RAM ball and socket system allows for articulation at both ends of the double socket arm creating almost infinite adjustment and perfect viewing angles.product dimensions Overall Height: 4.9 INCHES wedge dimensions Fits cup holders between 2.57 INCHES - 3.5 INCHES inside diameterball size B Size (1 INCHES )weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lbmaterials High strength compositepackaging type Poly BagWeight 1.1 lb FEATURES Portable and low-profile cup holder mounting base features flexible support fins that can be trimmed to size Included B size 1 INCHES RAM rubber balls allows for connection to any B size RAM double socket arm; ball and socket technology allows for near-infinite adjustability Made of high-strength composites for durability and reliability in the most demanding environments Backed by a lifetime warranty product dimensions Overall Height: 4.9 INCHES wedge dimensions Fits cup holders between 2.57 INCHES - 3.5 INCHES inside diameter ball size B Size (1 INCHES ) weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lb materials High strength composite packaging type Poly Bag Weight 1.1 lb