Product Specifications: Color: Black/White Material: ABS Plastic Power Source: Cordless Electric (1500mAh Battery) Sealing Cap Size: Wide Mouth (3.39-inch) & Regular Mouth (2.76-inch) Operation Mode: Automatic, Electric Effortless Food PreservationThe Cordless Electric Mason Jar Vacuum Sealer Kit provides a quick and simple way to vacuum seal your wide and regular mouth mason jars (mason jars not included). This kit includes a standard mouth sealer converter and a vacuum pump for both types of jars. Just press the sealer against the jar lid, click the button, and in 10-20 seconds, the air is removed, preserving freshness. To stop, press the button againsealing done in seconds. Durable, Food-Grade MaterialsOur sealer is built with high-quality ABS plastic and food-safe silicone adapters, ensuring durability and long-lasting freshness. This BPA-free kit is odorless and crack-resistant, making it a reliable solution for keeping your food in top condition. Versatile Sealing OptionsThis vacuum sealer includes two mouth seal sizes, making it compatible with both wide and standard jars. For a standard mouth seal, align the converter's red arrow with the unlock symbol on the device. Insert it into the wide mouth area, rotate clockwise until it locks securely. Complete Vacuum Sealing KitThe kit contains everything you need for food preservation: one vacuum sealer, a wide-mouth sealer, a standard mouth seal converter, five wide-mouth mason jar lids, five regular-mouth mason jar lids, and a user manual. Whether for pantry items or leftovers, this kit meets your vacuum sealing needs. Prolong Freshness, Reduce WasteThis vacuum sealer creates an airtight seal, extending the shelf life of your food. Its ideal for keeping pickles, sauces, dried goods, and more fresh for longer, minimizing food waste. The sealer operates at -70kpa for maximum efficiency.How to Use Put the mason jar lid on top of the jar (Not suitable for one-piece lids with rings) Press the sealer down firmly, holding it smooth Remove the top mason jar sealer to double the effect by adding a ring lid (ring lid not included in our package) To get the standard mouth seal jar, simply insert the red arrow on the standard mouth seal converter Align it with the unlock symbol on the main unit and then insert it inside the silicone ring in the wide mouth seal area and tighten it clockwise This point the arrow is aligned with the lock symbol, which indicates a successful installation. Notice When filling soft or liquid food, do not overfill the bottle, the less air in the bottle, the longer the sealer will work and the sealing effect will be short. Please check whether the mouth of the mason jar is dry and clean. If there is water or debris at the mouth of the bottle, the mason jar sealer will not be able to seal. The mason jar vacuum sealer did not press into place and did not allow the mouth of the bottle to fully enter the sealer. Mason jars don't match the lids. Please note that frequent use may cause the silicone ring inside the Mason jar vacuum sealer to dislocate, resulting in seal failure, please manually adjust to the original position before use. Make sure the electric vacuum sealer is centered and pressed firmly against the lid of the jar, Click the button to start the vacuum pump and wait about 40 seconds or more and the air can be evacuated to the seal. Clicking the button again closes the sealer.