1x Wisdom Logic Mind Intelligence Scientific Development Creative Thinking Puzzle Toys Disentanglement Game WT901 Bronze Key Bronze Key EachSize(Aprox.): 2.2 x 5.5cm (55/64"x2 11/64")Thickness:0.6cm (7/32") Intelligence game ,great challenge for kids and adults Age 6+ There are hundreds of different puzzle toys on my store,u can choose more at a time.