These metal twist RTS (regular twistoff step) caps are designed specifically for use with glass jars, complementing the look as well as being functional by keeping your goods nicely contained and are stocked in three colours. Glass acts as a barrier against external influences keeping products safe for longer even once opened. It will not leach any harmful chemicals into the products packaged within, making it a food contact safe packaging option that looks great and helps consumers see what they are getting before they make their purchase.