30 Pcs Stained Large Basic I Building Block Set With Storage TrayIdeal for young children with fewer and larger blocks. Features simple shapes for easy handling. Encourages creativity and imagination in building. Allows for the construction of walls, fences, and houses. Helps develop fine motor skills and spatial thinking. Made from basswood, stained with non toxic water based dyes. Dimensions: 17 x 17 x 2 inches.