4 jaws grease coupler blue color 1.Model :RT-GGA08B 2. ... coupler blue color FeatureMaterial: carbon steel Type:hexagon Jaws:4 jaws or 3 jaws Color:yellow Type:Hand Grease Gun Max.Pressure:10 ... /Grease nipple coupler/grease gun couplerTypes of jaw:4 jaws or 3 jawsMaterial of jaw:carbon steel,high temper spring ... 1pc or 2pcs/blister cardOuter carton quantity:100pcs/ctn 4 jaws grease coupler blue color