Female: 1 x Coupler & 1 x Plug, Male: 3 x Plug
Plugs - are heat treated to help eliminate failure at critical wear points. Professionals prefer steel construction plugs due to their superior wear resistance and longer life.
Couplers - have stainless steel ball bearings to ensure a secure connection. Professionals prefer solid brass couplers due to their non-sparking attributes and higher corrosion resistance.