When doing real 'business' is your thing, so is this Mug. Slip your knuckles into this and make your coffee too scared to ever get cold on you. This Mug is great for people with: anger issues, street fighters, jealous ex's, lawyers, mobsters, and even kids! We have a great time holding this intimidating Mug to our faces and leering out behind it at all the other people at Starbucks. Sure, it may look crazy and aggressive but it's actually just a functional Mug with a special handle so enjoy yourselftill it hurts! The Mug is ceramic with a Metal paint finish on the handle, therefore it isn't suitable for the microwave or dishwasher but then again, either are real Brass Knuckles.