Top Shelf &ldquo;70th Birthday&rdquo; Decorative Double Wall Clear Glass Coffee Mug ; Novelty Gift Ideas for Dad, Mom, Grandma, Sister, and Friends ; Artistic Design with Funny Sayings UNIQUE DOUBLE WALL DESIGN Our double wall design will keep your beverages hot but the outer wall will remain cool to the touch HUMOROUS GIFT IDEA Our funny birthday coffee mug will put a smile on your face with sayings "70 is the new..." on front & "What was I saying?" on back GREAT GIFT FOR ALL Whether its for your sister, mother, father, best friend, or yourself everyone will love their "70th Birthday" coffee mug DISHWASHER SAFE Top Shelf coffee mug is made with special Borosilicate glass that is heat-resistant and less likely to become cloudy or break CAREFULLY PACKAGED Top Shelf coffee mug comes safely packaged with gift tag attached to the coffee mug handle