Check the listing for details. RAM-B-108BU RAM Strap Hose Clamp Ball Base 1" - 2.1".... Color: Black, Condition: New. Listed at 32.94 USD. RAM Strap Hose Clamp Ball Base 1" - 2.1"... RAM-B-108BU Genuine RAM Products! The RAM-B-108BU consists of a B size 1 INCHES rubber ball connected at a right angle to a V-shaped base, and accommodates rails from 1 INCHES to 2.1 INCHES in diameter. To mount the RAM-B-108BU base, place the saddle-shaped plate on the rail and then wrap the metal clamp strap around the rail and plate. Tighten the knob on the metal strap with a screwdriver until it has a firm hold on the rail. The RAM-B-108BU is an alternative mounting base for Beechcraft airplanes with a "throw over yoke. INCHES hardware included (1) #20 Worm Drive Strap Clamp(1) #28 Worm Drive Strap Clamp(1) 6 INCHES Rubber Stripclamp range 1 INCHES - 2.1 INCHES diameterball size B Size (1 INCHES )weight capacity Standard Use: 2 lbsHeavy-Duty Use: 1 lbmaterials Marine-grade aluminumpackaging type Poly BagWeight 0.28 lb hardware included (1) #20 Worm Drive Strap Clamp(1) #28 Worm Drive Strap Clamp(1) 6 INCHES Rubber Strip clamp range 1 INCHES - 2.1 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 0.28 lb