The Boston round bottle is a bottle with rounded shoulders and sides. They are usually made of plastic, but they are also made of glass. These bottles come in many different sizes, so they can be used to store beauty products, medicines or cooking products, etc. These bottles can be purchased in a variety of colors and different types of caps, so almost any product can be placed.

The bottleneck of the Boston round bottle is usually very straight. They start to be round under the neck, and the sides of the bottle are also somewhat rounded. The bottom of the Boston wheels is flat, so they can support themselves well. Even though they have a round appearance, the shape of the bottle is not round. This is because they are usually very long but not too wide.
These bottles vary in size. A small Boston bullet may hold 1 to 2 ounces (29.6 to 59.1 milliliters) of liquid, while a medium container can hold up to 4 ounces (118.3 milliliters). Larger bottles are usually designed to hold approximately 8 ounces (236.6 milliliters) of material.
The tops of the Boston round bottles vary according to their intended use. Some may have ridges or grooves and screw caps. Those intended to be used as medicine bottles may have a tip that can be screwed on and act as a dropper. Others may have sprays, jets or pump tops.
At present, the Boston round bottle has many colors on the exterior, and sometimes the material can be dyed in different colors, such as blue, green or amber. Boston bullets can also be black, which is usually done when they are used as medicine bottles and the medicine they hold is affected by light.