Comprising glas U-shape 15mm dia., with one plain limb 220mm long one graduated limb, overall lenght 120mm. Limb graduated 25 to 35 x 0.2ml terminating in a bulb 37mm dia. with third limb 185x6mm (length x bore), jointed at right angles to the plain of the other two. Short length of the rubber tubing with two pinch clips of on short length of glass tubing mounted in end of wide-bo plain limb with rubber bung. With tall farm beaker 1000ml capacity and stirrer. All glass parts made from corning glass.