Personalised protein shakers allow your customer to quickly and easily prepare a protein drink after a workout. Designed with a secure lid and a removable screen, branded protein shakers also include markers on the side for measurement of ingredients. Most custom shaker bottles are made of sturdy plastic and have a capacity of between 500 and 650 ml. They can be used for stirring post-workout protein drinks, mixing cocktails, and preparing salad dressing. Customers like to take them camping and when travelling.