DUNCAN-Aleene"s Acid Free Craft Tack Reusable Putty, This is a reusable putty that adheres instantly to just about any surface, Removable from even painted surfaces and safe for use with posters; photos and papers, This package contains 0, 98oz/28g of putty (that"s enough to hang hundreds of posters!), Putty conforms to ASTM D4236, Imported, SKU: NMG6066