Mark Manger
Denver, Colorado, United States
Campaigns I'm On
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Grab-K is the new keychain version of the amazingly efficient GrOpener. Grab a Beer! -
Grab your bottle with one hand and the incredibly efficient GrOpener opens it.
Campaigns I've Funded
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Create perfectly-measured circles and arcs by expanding or contracting flexible circular ruler. Displays diameter, arc length/circumference and degrees.
Campaigns I'm Following
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No spill cup invented by a little girl, originally to help her grandfather. They've been to China and now ready for production -
Grab your bottle with one hand and the incredibly efficient GrOpener opens it.
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Oversized World Map Series...Make your trip planning, your adventures, paint it or make a infographic! Make Your World! -
Grab-K is the new keychain version of the amazingly efficient GrOpener. Grab a Beer!