ALEENE'S-Acid Free Tacky Glue Stick. This stick features the same quality glue as the original Tacky Glue Sticks but now available in an Acid-Free formula safe for use with photos and scrapbooking. This fast drying and permanent glue goes on smoothly. This package contains one 0.74oz/21g of glue. Glue conforms to ASTM D4236. Imported.