it have vacuum sealing, ordinary sealing and manual mode, effectively prolong the preservation period of food, suitable for dry food, wet food, soft food and powder food; sealing width: 25cm, it can work continuously in multiple packs to improve work efficiency; built-in pocket compartment for easy bag storage and a built-in cutter to neatly cut the bag to the length you need. it can be connected to an external exhaust pipe to extract vacuum from the vacuum tank and air valve vacuum bag; Certification:GS.syi