Build, match and compare colorful, stackable blocks while developing essential sequencing and classification techniques with Nest and Stack Shapes. Nest the blocks or place pieces in corresponding spaces on the birch plywood puzzle board. The durable activity board is sanded smooth and reinforced with soft plastic handles. Encourage color and size seriation, spatial thinking and fine-motor skills using the colorful and recognizable shapes. For Ages: 2 . Dimensions: 15 x 11.75 x 2 in (38.1 x 29.8 x 5 cm).