The shape of our 125ml plastic tumbler is that of a shallow cone. The technical term for a section of cone is a frustum. The advantage of the large diameter rim on this small and shallow plastic glass is that it lets the aromas float free and enhances the flavour of the drink being tasted. It makes this little plastic glass ideal for in-store tasting and is lined at 100ml. This is of excellent clarity, is ideal for premium brands and upto full colour printing available!