Please see detailed pictures and feel free to ask questions. Smoke-free home. Brand new in the box. I did open the box just to take a picture and show you that they are brand new. These are wooden stacking stones. They are great for Montessori school. Find motor Coordination, concentration, imagination, social skills, color, perception, and parent child playing. They are made of wood and there are 36 pieces. They are suitable for kids three and up and would be considered possible choking hazard for kids below three years of age. They remind me of memorial stones stacked along hiking trails