POLYETHYLENE COLLAPSIBLE WATER BOTTLE WITH POLYPROPYLENE LID AND RUBBER SPOUT. HOLDS UP TO 28 OZ. WHEN FULLY EXPANDED OR 16 OZ. WHEN COLLAPSED. SCREW-ON LID WITH DRINK-THROUGH PUSH/PULL SPOUT. ALWAYS HAVE LID OFF OR SPOUT OPEN WHEN EXPANDING OR COLLAPSING BOTTLE. 7 1/4" D X 3" DIAMETER X 12 1/2" D