On its website, 310 Shake offers customers a free sample shake and a free shaker cup. All the customer has to do is pay a $3.99 shipping fee, states 310 Shake.
As of 2015, customers must be wary of this offer because when they order the free sample, the company sends two bags of 310 Shake mix to their house every month and charges $128 for it, according to 310 Shake. To not receive these two bags every month, customers must email their name and order number to the company within 13 days of ordering the sample. Customers can also call a toll-free number to stop the automatic deliveries.