Like once-opened ammo cans, once-unloaded stripper clips are in excellent condition and have only been handled once, when the ammunition was removed from the clip by hand, not jammed into a magazine.  After the ammo is removed from the clips, they are acquired by cleanammocans.com and recycled as surplus. Cleanammocans.com once-used stripper clips are not range pickups that have been stepped on, jammed into magazines, or exposed to the elements.