The phd shaker cup is a 1000ml shaker designed to provide you with a lump free nutritional shake when yoursquore on the gofeaturing a screw on leak proof lid and flip cap allowing the drink to be taken straight from the bottle phdrsquos 1000ml shaker provides a large serving ideal for mass gain shakes requiring more liquid the phd shaker is easy to clean as it doesnrsquot use a mixing mesh and is dishwasher safe instead the phd advance shaker features a lsquomixer ballrsquo