The B948WH is a 16 oz white PET plastic capri oval bottle with 28-410 neck finish. The capri oval bottle has an oval-shaped base with a flat front and back, which provide excellent surfaces for a silkscreen print or a label. The capri also has steeply rounded shoulders, which create an elegant profile. Polyethylene terephthalate (PET) is marked with the resin identification code of 1. PET is of the polyester family and has high clarity, good chemical resistance, high impact resistance, and medium rigidity. PET is also light-weight and can be used for products containing essential oils. Avoid using PET containers to store products that contain essential oils greater than 5% or fragrance oils greater than 15%. If your oil percentages exceed these respective levels, please consider using glass. This item has a 28-410 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.