COOL INDIAN SHAKER BOTTLES ARE 100% FOOD GRADE MATERIAL THE MOST SAFE & HEALTHY MATERIAL FOR BOTTLES WHICH IS BPA FREE. ECO FRIENDLY, SAFE FOR ALL 100 % LEAK PROOF, STORAGE CONTAINER, WATER BOTTLE PLUS SHAKER FOR PREPARATION AND SAVING TIME WIDELY USE: IT IS LARGE ENOUGH (500 ML) TO KEEP YOUR WATER ALL DAY WHEN YOU ARE IN GYM, PRACTICE, CLASS, HIKING, YOGA OR OTHERS SPORTS.