Build early math skills with every hands-on creation! Kids turn early math and design lessons into fun-filled building projects during STEM-filled play sessions with MathLink Builders. This 100-piece building set features MathLink Cubes cast in 10 vibrant colors and ready to bring your wildest building creations to life. Little designers can follow along with the included activity guide's 10 building challenges, or design their own animals, objects, and original creations during imagination-filled open play sessions. Design a colorful puppy friend, build yourself a new pair of glasses, or craft a shady tree - the possibilities are endless! No matter what they build, kids will learn valuable STEM skills along the way, including lessons in symmetry, sequencing, perspective, and more! Best of all, cubes work with all MathLink Cubes products, and add extra power to existing math lessons and building projects.Contents include: 100 MathLink Cubes in 10 Different Colors, Activity GuideFor 1 playerAges 5 and upMade in ChinaBrand new condition in original packagingWipe clean with dry or damp clothWarning: Choking Hazard - Contains small parts not suitable for children under 3 years.