Corelle Square Vitrelle 12-Ounce Porcelain Mug, Buttercup,Corelle,1082293" /> Mug in the Square Buttercup pattern; 12-ounce capacity Crafted from quality porcelain for heat retention and everyday durability Design features graceful, realistic buttercup clusters on a white base Coordinates with Buttercups place setting in Vitrelle glass Safe in oven, microwave, and dishwasher; 3-year warranty