STRAUSS Energy Shaker Bottle, Black Shade, (Yellow) Shaker comes with a plastic whisker ball for consistent and lump-free drinks enhancing supplement absorption and keep your water all day when you are in gym, practice, class, hiking, Yoga or others sports Screw-on lid creates leak-proof seal, and flip cap snaps securely shut to keep contents contained; loop top for easy carrying or attaching keys.Do not microwave,freeze or boil The shaker is made of safe, durable, and BPA- free plastic for everyday use. As it is easy to carry, it can be used for hiking, camping, biking, travelling, etc Widely used It is large enough (700ml) to keep your water all day when you are in gym, practice, class, hiking, Yoga or others sports.