• For use with grease guns, the design incorporates grease nipple at one end which easily adapts to the grease gun coupler • For bearings in cars, boats, trailers, 4WD’s etc with a minimum inner diameter of 12mm (1/2”) to a maximum outer diameter of 125mm (5”) and height from 6mm (1/4”) to 50mm (2”) Type: Bearing Packer