A favorite worldwide, the RAM Self Leveling Drink Cup holder will bring a smile to anyone's face when they get it. The perfect accessory for any vehicle including motorcycles, ATV's, Big Rigs, and yes, even your prized riding lawn mower. Easily installed and positioned to keep your favorite beverage within reach, this gem even comes with a RAM can insulator. Take a corner as hard as you like, this holder is ready to ride. The brake / clutch reservoir mount will accommodate brake / clutch reservoirs and rails that are 0.5" to 1.25" in diameter. The mounting hardware for brake / clutch reservoirs include both standard and metric mounting bolts. U-Bolt dimensions: Accommodates rails from 0.5" to 1.25" in diameter. Material: High-strength composite and powder-coated marine-grade aluminum. Ball size: 1" rubber ball "B" size.