Specifications: Item: Mini bag sealerProduct Size: 5.2 x 4.9 x 1.5 inches Item Weight :1.76 ounces Notice: 1.This product should be powered by 2 x AA alkaline batteries. 2.Press sealer for about 3 5 seconds to start heating. Put the bag to be sealed in the middle and slowly pull it at a constant speed. 3.Please install the battery correctly before use, align the battery +and to the right position. The sealer don’ t work if the battery installed reversed.4.Please replace the battery in time when the power is insufficient((Please use a brand new high current battery, otherwise the heat will not be enough and it will not be able to seal)).5.Please remove the battery when not in use for a long time.In order to better play the function of bag sealer. Please follow the correct use of plastic bag sealer. 1. After getting the product, please follow the + and instructions to install the battery correctly. 2. Open the on off valve at the pressing position of the sealer. 3. Press the plastic bag sealer for 2 seconds to preheat. 4. Start sealing the plastic bag.