Automatic Stop Functionality: This Electric Mason Jar Vacuum Sealer Kit enhances your sealing process with an advanced automatic stop feature. No need to monitor continuously; the device ensures precise sealing, saving you time and effort with every use. Extended Freshness Guaranteed: Keep your food fresh longer with our state-of-the-art vacuum seal technology. This kit provides a leak-proof seal, preserving the quality of your food and preventing spoilage and stale tastes effectively. Versatile Jar Compatibility: Our kit is designed to fit your mason jar needs, including two seal sizes for regular (2.75in) and wide (3.4in) mouth jars. Whether preserving jams, sauces, or dry goods, our sealer makes storage simple and efficient. Hands-Free, Efficient Sealing: With a built-in LED display and a one-click start function, our Electric Mason Jar Vacuum Sealer Kit offers a user-friendly, hands-free sealing experience. Just set it up, press the button, and the electric pump does the rest. Colour:black Material:plastic Due to different product batches, the appearance , which does not affect the use Package Contents: 1 * Mason Jar Vacuum Sealer 10 * jar lids 1 * jar lid opener 1 * USB CABLE 2 * sticker(12 labels) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.