Quick fist clamps make it easy to mount tools and equipment on any vehicle, motorbike, or wall in the workshop or garage. Features: Quick fist clamps can be used on fire trucks, 4WD vehicles, work vehicles, off-road trucks, military equipment, law enforcement vehicles, campervans/motorhomes, motorbikes, boats or on any wall. Clamps are made from transportation grade rubber and are not affected by extreme cold or heat. Clamps are UV and salt resistant Ideal for air tanks, fire extinguishers, scuba tanks, hose nozzles Holds objects 64mm to 190mm in diameter. Mounting base measures 6" x 7/8" (152 x 22mm). Attaches easily with 3 number 10 bolts or screws (not provided) One clamp supports a working load of 50 lbs (23 kilos). Note: Clamps are sold individually