1.Mixing  shaker cups for mixing protein shakes, smoothies, and supplements

2.Patented mixing system uses 316 surgical-grade stainless steel  wire whisk found only in shaker bottles
3.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
4.Wide mouth makes it easy to add mix scoops and liquids, and embossed markings measure both ounces and milliliters
5.BPA and phthalate-free, dishwasher safe;

Accept  OEM