Box of 25 nickel holders are intended for premium long- term archival storage or display of your coins. Made of inert high impact, crystal clear polystyrene a 100% archival plastic the holder will not harm coins. - 2x2 coin snap holder for premium Display or long- term storage of Coins - made of inert polystyrene will not harm coins - insert with black foam on one side and white paper on the other - 100% archival plastic. No PVC! - 2- piece snap together design - stackable overall: 2 x 2 x .25