The B186WH is a 12 oz white HDPE plastic imperial round bottle with 24-410 neck finish. The imperial round, also called bullet round and cosmo round, is characterized by its tall and slender build with steeply rounded shoulders. 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 24-410 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.