ENDLESS FUN - Up to 8 players can play at the same time. 400 pieces of educational building blocks provides endless fun to kids for a long time. Toddler can build castle, buildings, cars, houses and animals with their imagination and hands-on practice skills, unlimited fun for your little builders. Endless imagination, endless fun for all. MATERIAL - Made from high quality ABS plastic that have been tested to comply with all toy safety standards, non-toxic and odorless, no sharp edges, durable and safe for little kids. It is a great choice to have a imaginative and safe playing time for you kids with this bulk basic building bricks set. HASSLE-FREE ENJOYMENT GUARANTEED - Brickyard Building Blocks are easy to wash and come with a sturdy storage box for quick and convenient cleanups. Each of the 400 bright, colorful, non-toxic pieces are certified Phthalate, Lead, Cadmium, and BPA-free. We invested in child-friendly materials and rigorous lab tests to make sure your kids are 100% safe from harmful chemicals. SUPPORTS STEM EDUCATION - Designed to enhance your children's Science, Technology, Engineering, and Math skills. Improve your kids' imagination and creativity by challenging them to build their own cars, animals, robots and anything they can imagine! Our educational building blocks grow with your child, too! We include a full-color guide with 20 designs your kids can build, starting from easy for younger kids to advanced designs for older kids. PERFECT GIFT FOR KIDS - Have you worried about your kids spending too much time with iPad or tablet games? Classic size building bricks, perfect gift for birthday, Christmas and children's day or any other special occasion. Both suitable for girls and boys ages 3+. Because we're so confident you'll love our STEM building blocks, it's backed by our no-hassle satisfaction guarantee. If you don't love it for any reason, you can return it for a full refund.