Double Male-Female Adapter - 25-Pack. This connector allows you to connect two females to one male.. 0.250 (6.4 mm) tabsWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.