Why Choose Spike Protein Shaker? SAFE & HEALTHY - Spike Protein Shaker water bottles are 100% BPA and DEHP free and made from environmentally friendly, non-toxic and recyclable materials. All mugs are dishwasher safe for easy cleaning. Made with 5 polypropylene Polypropylene is a low-toxin plastic that tolerates heat. Shaker Features: 1) Suitable for hot and cold water. Perfect for protein shakes, smoothies, pancake dough, scrambled eggs, fiber drinks, dressings, meals and more. 2) The non-toxic polypropylene mixing ball whisk moves freely inside the bottle when shaking; mix even the thickest ingredients with ease. Enjoy your drink and nutrition when doing sport; good for gym lovers. 3) PP ball; better shaking; better mixing. Drink with opening, quickly and easily. 4) Wide opening: easy to add ice and clean, easy to mix. 5) Make you taste the joy of exercise in motion, stimulation of competition, cooperation, pleasure, make you live setbacks and courage, failure and success, struggle and victory. How to use Spike Protein Shaker: 1) Open the lid. 2) Pour the quantitative nutritional powder into the shake bottle. 3) Add the right amount of water (recommended warm water below 40/104). 4) Cover the lid; shake the bottle(the mixing ball whisk is inside the bottle). 5) One key to open the lid, then you can enjoy your drinks. Package includes: 1) 1 x Protein Shaker Bottle 2) 1 x Spike Mixer Ball