Woot offers 120-Pieces Magnetic Building Tiles Set for $17.99 (orig. $69.99). Free shipping for Prime Members. 

Product Description:
Tiles Magnetic Construction Building Blocks make learning an enjoyable and meaningful experience. 

• ENDLESS BUILDING FUN – This 120-piece magnetic building tiles playset features a distinctive diamond-shaped surface, perfect for sparking creativity and promoting cognitive development in children
• LEARN THROUGH PLAY – Introduce STEM learning early with these magnetic tiles. They help with visual learning, color recognition, fine motor skills, understanding geometric shapes, magnetic polarity, and basic math. From counting to 3D design, these tiles keep kids engaged in fun and educational activities, giving parents some quiet time
• INSPIRE CREATIVITY – Boost brain development and unleash imagination with this educational toy set. Ideal for preschoolers and school-age children, these magnetic tiles encourage hand-eye coordination, problem-solving, and teamwork. Great for solo play or group activities in classrooms or kindergartens
• SAFE & DURABLE – Made from BPA-free ABS plastic with stronger magnets sealed inside, this ASTM-approved set is safe for kids. The bright, high-transparency tiles feature rounded edges to prevent scratches
• FAMILY BONDING – These tiles provide hours of educational fun while helping kids focus and develop key skills like color matching, construction, sorting, and stacking. Perfect Gift: Ideal for birthdays, holidays, or any occasion, BBMVP magnetic tiles are a gift that offers endless hours of educational entertainment