New in package, Tupperware, multicoloured, tumble set of 4 with lids. 17oz/500 ml. 1 yellow, 1 blue, 1 orange & 1 green. Spillproof valve, which conforms to a straw when inserted into the seal and snapped back when the straw is removed. When the dripless straw seal is used, liquid drips are minimised from the spillproof valve. When a straw is inserted into the seal, some dripping may occur if tumbler tips over.