This is something that everyone CANNOT live without if you work at a computer or anywhere where you don't, shouldn't ever, and cannot afford to spill your coffee on your desk. It is a "Push on" top to fit a standard 3" coffee cup, and when in open position allows to to sip your coffee freely. When in "Locked" position you can hold the cup upside down... NO LEAKAGE! I've personally ruined keyboards, documents, and more by NOT having this. I got only one and it was everytihing it's suppose to be so I bought 15 of them for stocking stuffers. The owner is a great guy... Doug... who is the inventor, will talk to you directly and has great same day shipping and customer service. I'd give it 6 stars if I could.
Tip for consumers:
You can call and Doug the owner actually answers the phone.
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