We love our 38-400 White Flat Gloss Smooth Cap as the sleek design of this lid makes it perfect for a wide variety of products. The 38-400 White Smooth Cap features an F217 liner, making this the perfect screw cap for a wide variety of jars featuring a 38-400 neck size. This flat gloss cap works great for capping products like creams, salves, lip balms and bottles with 38-400 necks.