4.2 oz (125 ml) Natural HDPE wide mouth oblong bottle with 38-400 neck finish, bottle only (no caps). natural HDPE wide mouth oblong bottles offer a space saving design for the workbench. These bottles feature a wide mouth opening, ideal for sampling solids and powders. HDPE provides an excellent moisture barrier and are impact resistant. They are ideal for high-speed filling, demanding pharmaceutical specifications and the rough handling of interstate shipping. order caps separately based on your application.