WHOLESALE 5PC BRASS QUICK COUPLER SET Contains stainless steel ball bearing rings. Includes: 1 piece 1/4"" quick coupler, 2" long x 7/8" diameter, 3 piece 1/4" male plugs 1 5/8" long x 7/16" diameter, 1 piece 1/4" female plug, 1 5/8" long x 5/8" diameter. ⚠ WARNING: This product can expose you to LEAD, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.