RAM Level Cup 16oz Drink Holder with RAM Torque Large Rail Base (RAM-B-408-112-15-A-132U) (sku 54097)The RAM Torque handlebar and rail mounting base has a 1 rubber ball and accommodates bars 1 1 8 to 1 1 2 in diameter. Sizing inserts are included to provide a snug fit and protection of the rail. The mount utilizes nylon insert locknuts to prevent loosening in high vibration environments. Included is a short double socket arm and a Level Cup. Compatible with any cups, cans, bottles or mugs ranging from 2. 5 to 3. 5 diameter. HARDWARE INCLUDED (2) #10