Positivi-Tea Mug! Back reads: A BIG 'OL CUP OF MO TEA VATION. Just what you need to get your day started right. Kiln fired to 1900 degrees. Measures 4 x 4.5 and holds 16 oz. Kiln Non toxic lead free glazes- safe to place in the dishwasher, microwave, and leave unwashed in the sink. Use it, enjoy it, and keep your chin up.