This shaker cup is made of Tritan plastic and features an innovative bottle designed by Jaxx with a patented agitator to help blend nutritious shakes into an even consistency. Bottle has a 24 ounce capacity and features a non-slip grip. Measurement markings on the side of the bottle help you get the perfect proportions each time. Simply twist off the cap, slide the cap secure on the lid to prevent it from slipping, and drink your favorite shake or hydrate with some water! All components are dishwasher safe, non-toxic, and BPA-free.