This sensory board features a 10" x10" base Lego build plate and comes with an assortment of basic Lego building blocks. The Lego surface offers an intriguing tactile surface to explore in addition to the hidden benefit of refining fine motor skills. Perfect to entice the senses for those with a need to fidget, who calm through repetitive movements, or who improve focus through visual-motor engagement. This Lego base plate is inset into a pine frame, so the overall item measures 13 3/8" square and can be wall mounted. Great addition to home, school, or clinic setting.