This 1 oz clear glass square bottle has a 24-400 continuous thread neck finish. The traditional name for this bottle is french square. The straight sided shape is designed to maximize shelf space and the corners are rounded (or beveled) to give a soft look and feel to the jar. It can be used to package a wide variety of products, including food, personal care, healthcare and more, simply by pairing the jar with a matching 24-400 continuous thread closure.