If the packed out formula of Muscle Sport’s all new pre-workout Rhino Black wasn’t enough, the brand is now putting a little something else in to every tub to make it even more interesting. Starting today instead of just including the powder and scoop inside Rhino Black, Muscle Sport is also throwing in a free Fill ‘N’ Go Funnel. For those that haven’t used one of these before, it’s basically a funnel with screw on lids at both ends allowing you to store and poor supplements on-the-go. As mentioned the freebie is only being put in starting today so not every tub of Rhino Black will have it yet, although it does look like Muscle Sport has marked the ones that do.