This jumbo building blocks set comes with 8.27" x 2.76" x 3.58" giant blocks, 2.76" x 2.76" x 2.01" square blocks, and 2.76" x 5.51" x 2.01" rectangular blocks for the perfect size for little hands to hold and grasp, and it's recommended for ages 3 months and up. Kid-friendly and durable, the blocks are made with non-toxic, food-grade materials that are safe, soft, easy to clean, and bendable, so you can allow your kids to build without worry. Featuring bright red, yellow, green, and blue colors, this multicolored building block set introduces babies and toddlers to the primary colors, enhancing color cognition and visual development. A great addition to any playroom, these stackable toy blocks make learning time loads of fun and more effective by stimulating your child's cognitive development, imagination, and motor skills. Connect fun playtime with critical neurological development with the UNiPLAY Giant Plump Series 24-Piece Soft Building Blocks Set.