Set ContentsVacuum Sealer Bags x 30 size134x102 Inch Sealing Clip x 6 The multifunctional food storage bag can be used to store solid and semisolid foodsSuch as nuts biscuits fruits and vegetables It can be used in food home and outdoorsIt can also be used as storage bag for pet treats or for storing small items magazines etc Airtight SealThe special sealed bag forms a vacuum state to solve food deterioration oxidation deterioration etc and provide the greatest convenience for food preservation This product can extend the freshness of food by 3 to 5 times and maintain the original taste and color of the food The use of new valves and electric pumps can more easily complete the vacuum packaging Reusable and safe The vacuum sealed bag does not contain BPA is made of PA and PE materials and can be reused Double zipper The vacuum sealed bag adopts a double zipper design which improves the air tightness of the seal It can extend the shelf life of food and isolate peculiar smells in order to ensure the sealing of the bag the valve is tight and there may be difficulties in suction with a 4psi suction pump We recommend that you try our brand of electric pumps Suggestion The blue patch is the valve Do not tear or peel off the valve part Just use the pump directly without any other operation