Description A chemistry teaching aid which gives a better insight to students into the three dimensional aspects of molecules and chemical compounds. The sets consists of coloured plastic balls in different diameters and follow a universal color code in representing various elements. The balls have one or more holes and may be inter-connected to each other by white plastic lugs that represent valency bonds and the structures so formed represent molecules or compounds. The set is packed in a box with instruction manual. Code Type Packing 01 Junior (37 connecting lugs and 75 balls) Â 1 set 02 Senior (185 connecting lugs and 370 balls) 1 set
