The mixer bottle is made of quality pp material,high temperature resistant,impact resistance,and sturdy.Mixing ball in the shaking cup ensure that milkshake won't clump, and won't scratch the inner bottle during mixing.Sports shaker bottle,has 17OZ capacity,great for fitness, workout,yoga,cycling,hiking,climbing,business trip,travel,and more.Shaker bottle with large mouth for easy cleaning. The design of the bottle cap with hanging ring,which is easy to carry,and has a heat insulating shell,highly resistant to falling.Portable water cup is great for making smoothies,shakes and ice cubes.Blend drinks right in the bottle when pouring juice with ease.Welcome to brand it!