The 40mm neck size preform designed for foam pumps is just one of many neck sizes on the market. Other popular neck sizes include 24/410 Neck Size Preform, 28/410 Neck Size Preform and 30mm Neck Size Preform neck size preforms. These preforms are used in various types of cosmetic packaging such as spray bottles, lotion bottles and cream jars. The neck size of a preform determines its compatibility with a particular type of cap and dispenser, making it an important factor when selecting the right preform for your product. Product Description Customized, factory price, Pantone Color Accepted, Cheap pric…