This 90-piece marble race set includes 32 white marbles, allowing kids to build customizable tracks and enjoy exciting marble run games. Made from high-quality, non-toxic ABS plastic, the pieces are durable, safe, and smooth-edged to prevent scratches. Designed as a STEM educational toy, it enhances hand-eye coordination, logical thinking, creativity, and spatial imagination. Kids can play interactively with friends or family, fostering teamwork and endless fun. With vibrant colors, this marble maze is an excellent gift for birthdays, Christmas, or holidays, suitable for boys and girls ages 3+. Product Details: Dimensions: 17 x 11.6 x 3.7 inches (43.2 x 29.5 x 9.4 cm) Weight: 2.97 pounds (1.34 kg) Includes: 130 building blocks + user manual A fun, engaging, and educational toy for young builders!