New.  Made in the USA. So they are uniform in weight and consistently produced to quality standard Military contract specification weight thickness and strength specifications. Same as the current military government contractor, currently sells and stocked in the military px stations around the country. These are the real thing not a cheap knock off. Gold colored brass.  Same type used by the US Military, on Trading Pins, Collar Tabs, Disney pins, Tie tack pins, Craft Projects, School Pins, Lapel Pins, Harley Pins, Etc. Brass clutch backs clasps, also called brass Butterfly backs, mil-spec clutch backs, Id badge backs, US military badge and insignia backs, USMC USAF US pin lapel and collar insignia pin backs, tie tack pins, lapel pins , hat pins , etc. These are designed to be used with the most standard pin backs with a shank of 1 mm to 1.2mm. Made in the USA. By a US manufacturer by US workers. All of our brass clutch backs are Made in the USA. They are a always the same weight and thickness. No poking through the back