PREMIUM MATERIALS: The main body is made of red coated aluminum and the coupler sleeve is made of black coated aluminum, durable and long lasting.SIZE: 1/4inch NPT Male thread x 1/4inch Body size, interchangeable with most manufacturers; accepts three of the most interchanges, , and T type.MULTIFUNCTION: For switching quickly between different air tools and accessories with ease during applications.COUPLER DESIGN: Six balls to hold the plug securely, -in coupler, fully automatic connection without pulling back the sleeve.OCCASION APPLICATION: Great for professional jobsites, in automotive shops or at home in the garage for air hose, air compressor, air tools, air nailer, air blow , pressure washercolor:RedMaterial:Aluminumsize:Length 5.7cmPackage Contents:12 x 1/4inch MNPT Universal Air Coupler1 x adhesive tapeOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.