With a silicone sealing gasket, it is more durable than a stainless steel sprouting lid. Easy to use sprouting lids: Put the beans and water into the jar, tighten the sprouting lids, and wait for the beans to soak for a while before draining the water so that the beans will start to germinate Made of plastic, it is safe, and has no odor. Can grow bean sprouts, broccoli, mung beans, etc. Ideal for growing a variety of vegetables at home.