Features: -Made of food grade silicone, wear-resistant, sturdy, reusable, environmentally friendly, healthy and safe. -Easy to use, first freeze the cup for about 3-6 hours until it is frozen (the cup becomes hard), put the desired beverage into the freezer, then take the cup out of the freezer, pour your favorite beverage and cover the lid, finally press the cup for 1-3 minutes, gently stir from time to time to get a smoothie. -You are free to pour your favorite beverage and add toppings such as fruits, chocolate, nuts, etc. to enhance the taste and nutritional value. -It comes with a spoon that can be attached to the straw so you can enjoy your smoothie anytime, anywhere. .