The B236 is a 16 oz natural-colored HDPE plastic packer with 63-400 neck finish. This container has a wider proportional mouth than normal bottles. Packers come in a variety of sizes, but they are typically "squatty" in shape with a wider mouth. Packers are used extensively for pills, capsules, supplements, powders, and other health-related products. High density polyethylene (HDPE) is marked with the resin identification code of 2. HDPE has a high tensile strength, good resistance to chemicals, good impact resistance, highly rigid, and highly scratch resistant. This item has a 63-400 neck finish. The first number refers to the diameter (in mm), and the second refers to the closure depth, style and thread. This container can be paired with a closure with a matching finish.