About this item meet all your vacuum seal needs:1* wide-mouth sealer, 1 regular-mouth sealer, 2* hose connectors (1 for food saver vacuum sealer machine, 1 for extension hose to connect to other vacuums), 1 Electric vacuum pump ( for Electric air extraction), 1* lid opener (for easily open mason lid ), 2* wide-mouth mason jar lids and 2* regular-mouth mason jar lids. Environmentally Safe: Our vacuum sealer for jars is made of premium ABS plastic, food-grade silicone, BPA-free, odor-free, healthy for a human to use, crack-proof, and durable for