Our kit of reusable vacuum bags helps to keep fresh your food longer and save your money . Copri' "il Salvafreschezza" is a perfect system for storage in the freezer or in the refrigerator your food with very resistant and reusable vacuum bags Our vacuum bags keep fresh your food for long term, are reusable for save money and respect for the environment Bags have a special one way valve that allows air in the bags to be removed Available in a practical set with included : 1 Manual Pump 2 Small bags size cm.23x28cm. ( 3/4 gallon ) 2 Medium bags size 30x28cm ( 1 gallon ) 2 Large bags size 30x56cm ( 2 gallon ) Instructions : to correctly remove the air, before starting to extract it using the pump, we recommend placing a cloth under the vacuum bag and keep the pump vertically . Once finished press the valve on the bag with your finger for a few seconds to seal it