Part #ASC-1518F. This Ultra-High Vacuum Aluminum Foil is 18" wide with a thickness of .0015" (.004mm). 500 linear feet (152.4 m) of foil on a plastic core, packaged in a cardboard box. Weight is 16lbs. Totally greaseless and ready for vacuum use! Don't use the grocery store dirty foil again! Save it for your barbeques!