Tpwtm mini shaker from the protein workstrade is a high quality sports shaker to mix your protein shakes in its compact 400ml capacity makes it the ideal shaker when you are on the go or only need a small amount of liquid in your shake the tpwtm mini shaker is robust and stylish moulded out of heavy duty plastic with a tight fitting screw lid and secure flip top for easy drinkingr it is the ideal protein shaker bottle for mixing super smooth protein shakes or for that matter any powd