Pack all your products in these sturdy zip-lock bags! Zip-lock bags are clear bags made of LDPE foil. This ensures that the contents are well protected against moisture, dust and dirt. The bags are resealable and have a hanging loop and a writing surface. So they can be described, which can be useful for archival purposes. These grip bags have a foil thickness of 50 microns, a size of 230 x 320 mm (dimensions up to the grip closure) and they are packed per 1000 pieces. The advantages of grip bags with a writing surface: Are made of strong, clear LDPE foil Protect against moisture, dust and dirt Have a hanging eye Have a writing surface; useful for archiving