Mighty Mug Plastic Go Style Mug - Purple

It is practical and working

Because of the price (70 euro's), I thought I would get 6 mugs for the price of 5, but it turns out 6x is part of the 3 dimensions of the cup. That's totally my fault, but in case anyone thinks the same way, it's only one, and it's cheaper to buy this locally. It's probably expensive because they ship it from Japan, so I'll just keep it.

Does not keep coffee hot for too long. Not like my vacuumed sealed thermos. However better insulation than a styrofoam cup or a glass mug. The cup seals very well and does not leak. The best part about this cup is that it can’t be knocked over. I work on electronics from a work bench and I am always knocking things over with my elbows. Yes, and I always seem to knock over my coffee and beverages. Liquids don’t work well with electronic especially when that liquid is sugared or sweetened. This cup can not be knocked over even after striking the cup with force. However, if you lift the cup straight up, it lifts easily. The base of the cup has a special suction base that sticks well to smooth non porous surfaces. My workbench is wooden and has no problem forming a very strong bond. Lifting the cup releases the suction instantly due to some very creative engineering. Love this cup! Already save me a ton of spills. Very satisfied.

Increíble producto, mantiene el café caliente por mucho tiempo y lo mejor es que evita esos accidentes donde se pudiera derramar todo, pues se mantiene firme en la superficie de la mesa o escritorio

Das Ding saugt sich auf glatten Oberflächen wirklich fest, einfach toll neben Sachen die nicht nass werden sollen!

I'd recommend you put the lid on if you want maximum spill protection, otherwise if bumped can splash a bit out the top.After spilling coffee on my nice mechanical keyboard I searched for a solution and found this. It works great on a flat smooth clean surface.