This 4 oz clear glass square bottle has a 33-400 continuous thread neck finish. The traditional french square bottle in flint has a straight-sided shape designed to maximize shelf space with the corners rounded or beveled to give a soft look and feel to the jar. Use this jar for packaging a wide variety of products, including food, personal care, healthcare, and more. Take it beyond the kitchen by using it in the bathroom, craft room, playroom, or classroom