Magna-Tiles® from Valtech are the original magnetic building toys for kids. Since 1997, they've sparked hours of imaginative play and STEM learning. Now, the Magna-Tiles® Freestyle 40-Piece Set unlocks even more creative potential and fun ways to learn! This set includes brand-new X shapes for even more possibilities. Perfect for creating feathers on a bird, branches on a tree, and the like, each X piece includes nine-free moving magnets, allowing kids to build in any direction and even overlap and layer! Young architects age three and up can learn and grow while enjoying all these great benefits: Stained-glass aesthetic: Each Magna-Tiles® building piece is made from transparent, vivid plastic, giving them a stained-glass look that's sure to spark your child's imagination. A mix of squares, triangles, and unique X and T shapes keep kids creating. STEM-approved: Magnetic building shapes aren't just fun, but they're also educational! Teachers, caretakers, and parents everywhere have found ways to incorporate Magna-Tiles® building sets into lesson plans to teach math, science, spatial and tactile skills, and other foundational concepts. Child-friendly design: Whether kids are playing, learning, or both, they're doing it with toys designed especially for them. Three-inch tiles are easy for little hands to manipulate, while nontoxic materials ensure hours of safe and healthy fun.Magna-Tiles® are made with food-grade ABS (BPA-free) plastic, free of any phthalates or latex. Parents and teachers can be confident that these bright tiles are safe for kids and toddlers to use. They're also highly durable with sonic-welded construction, ceramic magnets, and a scratch- and dent-resistant finish. They're guaranteed to last through years of play, both inside and outside, without breaking, degrading, or losing any of their eye-catching color or translucence.