MATERIAL - Made from aluminum, these aluminum cans are sturdy, lightweight, making them ideal for a variety of uses. GOOD SEALING - Each aluminum tin jar has a rotating lid, which provides good sealing and the items inside the can are not easily scattered, and can be stored well. SIZE - There are a total of 40pcs aluminum tins with lids in this package, each measuring 83 x 28 x 0.3mm, can hold 100ml/3.5oz, they are small and lightweight, easy to carry or store. EASY TO USE - These aluminum jars can be smoothly opened and closed, typically used for makeup and other items in women's makeup cases. VERSATILE USE - Aluminum tin cans can be used to storing a homemade cream, lip balm, candles, and also can for storing jewelry, sewing accessories, beads, buttons, nail art, jewelry, and more.