Are you an architect or a little child looking for building fun, this is definitely the toy for you. Each block is handcrafted, making it non-toxic and safe. The blocks come in different sizes and shapes, offering you maximum building potential. The manhattan blocks come with a platform to hold your blocks in place, acting as streets as you build upwards and make multiple buildings of different height. Made for ages 1.5+ years and up. Size of base: 10" x 10".