The electric shaker bottle is made of food-grade Tritan, safe, BPA-free and FDA compliant. This material gives you the transparency of glass and the lightness of plastic. The protein shaker bottles are unique among shaker bottles with the way they have an inbuilt battery-operated blender insider them. Performance vortex mixer, Just click once, say goodbye to caking and enjoy the silky texture. The electric shaker mug has a minimalist design that sets you apart. The sturdy mixing cup and sealing ring prevent liquid leakage, improved insulation and thermal insulation, and the neat design is easy to hold and drink.