【Electric Portable Vacuum Pump】 If you don't have a FoodSaver Vacuum Sealer, don't worry! We provide you with an electric portable vacuum pump that you can use to extract the air from your Mason jars, and just 6-8s to complete the vacuum sealing. Perfect for camping, picnics and outdoor activities! 【Easy to Use】 The food vacuum sealer with jar sealer kit fits wide-mouth and regular-mouth mason jars (excluding mason jars). Making sure the electric vacuum pump is centered and pressed firmly over the lid of the canister, align the interface and start the vacuum pump for about 6-10s, the air can be exhausted to the sealing state, reducing spoilage and food waste. Food saver jar sealer attachments are easy to clean, washable, and dishwasher safe. 【Environmentally Safe】 Vacuum sealer for jars is made of high-density ABS plastic, BPA free, non-toxic and odorless. easy to clean by hand or in the dishwasher. The jar vacuum sealers are ideal for safely storing food such as jams, salads, cold drinks, and dry food. Vacuum storage can keep food fresh and prevent odors and oxidation. 【Complete Sealer Kit】Includes with 1* wide mouth sealer, 1* regular mouth sealer, 1*Electric Vacuum Pump, 4* Wide-mouth mason jar lids (86 mm), and 4* Regular-mouth mason jar lids (70 mm), 2* 7.87''*8.26'' sealed vacuum food bags and 2*10.23''*11.23''sealed vacuum food bags, 1*hose connector (for external expansion of automatic vacuum machine), 1* Lid Opener, 1*USB cable. 【Note】To ensure a good seal, do not overfill the Mason jars with liquid food, and make sure the lids are dry. Too much liquid will cause too little difference in air pressure between the inside and outside of the jar, resulting in a failure to seal properly.