CONSTRUCTED OF 18/8 STAINLESS STEEL. LEAK PROOF SCREW ON LID WITH POP TOP CAP. LID CONTAINS BUILT-IN MIXING GRATE. MIXING BALL INCLUDED. LIQUID MEASUREMENTS DEBOSSED ON SIDE OF SHAKER IN BOTH OUNCES AND MILLILITERS FOR ACCURACY. EASILY MIX POWDERS WITH THE UNIQUE MIXING GRATE AND MIXING BALL. BPA FREE AND FDA COMPLIANT. 3.625" DIAMETER X 8.375" H