The B17008NT is a 16 oz natural-colored HDPE plastic carafe sprayer bottle with 28-400 neck finish. The sprayer bottle is intended to be paired with a trigger sprayer or small cap. They have a tall tapered neck to aid in gripping the bottle when using the trigger sprayer. 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 28-400 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. Natural-colored containers are not actually colored. This is the natural color of the plastic, which is a milky translucent color. This translucent color shows product level, or how full (or, if you're a pessimist, how empty) the container is.