A. These products are made of aluminum, which can be recycled or reused. This is environmentally friendly and more eco-friendly than plastic cosmetic tubes. B. Specifications: The outer diameter of the screw-top jar is about 2.05 inches (52 mm), and the outer depth is about 0.87 inches (22 mm). The internal volume of the screw-top jar is about 1 ounce (30 ml), and it comes with a screw cap to ensure safety and prevent leakage. C. There are no sharp edges, and the edges are rounded. These screw-top jars are relatively safe to open, durable, and lightweight. D. Applicability: These round screw-top jars are suitable for storing handicrafts, cotton, hooks, beads, buttons, coins, and other items. They are also suitable for storing other small objects, which can help prevent the items from being overexposed to light and dust. E. For those who want to make lip balm, cosmetics, or perfume, these jars can assist in creating a nice gift. These round jars are suitable for making lip balm and can also be used to store other cosmetics. They can even be used to organize nail supplies and beads. F. Color: Silver G. Material: Aluminum H. Package contents: 48 aluminum jars with screw caps I. Only the above package contents are included, and other items are not included. J. Note: Light and different displays may cause the color of the item in the picture to vary slightly from the actual product. The allowable measurement error is about ±1 - 3 cm.