Bump water bottle / Bump water bottle

Bump water bottle, by 8 rows of points can bump composition, the eight rows of dots in the water under the pressure of protruding; when the drink bottle inside the water part, not subject to pressure point will be concave to Tip the bottle of water has come to this point below. Blind in to take hold water bottles, as long as two rows of hand gently touch the dots can be very clear to know how many bottles of water.