Funny Ceramic Coffee Mug for Dad - World's Greatest Farter, I mean Father Funny Ceramic Coffee Mug for Dad - World's Greatest Farter, I Mean Father Ceramic Coffee mug (1 piece per order). Microwave and top rack Dishwasher Safe. FDA Approved, Prop 65 & EURO Compliant Item Size: 3.75"(95mm) height x 3.23"(83mm) diameter Made to order Perfect Father's Day gift