Usn nutrition tornado shaker is the ideal way to allow you to take your protein shakes on the go suitable to mix hold and deliver your favourite usn supplementsr usn nutrition tornado shaker has a large 750ml capacity ndash allowing 500ml of liquid giving you plenty room to shake up a smooth protein shake every timer usn nutrition tornado shaker screw top lid prevents leaks making it even more convenient to travel with or store in gym bags and lockers the flip back and lock mouthpiece