carry drinks easily

Fight gravity.
Don't be afraid of spilling drinks anymore.
Watch the video to see the wonder.

One:
http://www.youtube.com/watch?v=jBTKmu8FVIg

Three:
http://www.youtube.com/watch?v=W83O7gRDyN8

Four:
http://www.youtube.com/watch?v=tn49A9DKy0U