The set contains five boards and twenty five cards. Each board has a picture in descending size. Identify the picture, sort cards and match it with correct size of card. Improves co-ordination and concentration. Develops observation, thinking and analytical skill. Right of all : Gender Neutral toy to encourage learning for all. Enhances mathematical skill, sensorial and intellectual development. Safe and sturdy make : Made from high quality plywood, printed with child- safe inks and paints. Edges and corners smoothed for safety.