Grow Your Own Crystal. It'S A Cool Science Project! Crystal Will Grow To Approximately 4.5Cm (1.7 Inches) In Diameter. However, The Size, Shape And Colour May Vary Depending On Experiment Conditions. Contents: 1 Bag White Crystal Compound, 1 Bag Red Colourant, 1 Crystal Base, 1 Stirring Bowl, 1 Stirring Spoon, 1 Display Cover, 1 Coloured Wrapper, 1 Circular Card Cover And Detailed Instructions. Ages: 5+.