Reusable vacuum zip bags. Includes: * 2 main units * 1 dedicated attachment * L size: 50 unopened bags, 15 opened bags * M size: 50 unopened bags, 16 opened bags * Instruction manual I received these as a gift, but I don't use them, so I hope someone who can utilize them will take them. (^^) I've researched various things and am offering them at a discounted set price!