LEGO Classic Monochrome Brick Set - Black, White, Dark Gray, Light Gray + Bonus Flat Parts & Storage Case! Product Description (Japanese) This is a LEGO monochrome brick set that fosters children's creativity! ✅ LEGO bricks (black, white, dark gray, light gray) in four colors, each stored in its own plastic case. Easy to tidy up! ✅ Bonus: Flat parts bag (white, dark gray, light gray) in 3 types. Perfect for baseplates, walls, and fine details. ✅ Condition: Used. Please check the photos. LEGO is the best toy for developing "imagination," "problem-solving skills," and "design skills." Monochrome colors are ideal for buildings, cityscapes, and art projects, allowing for greater freedom in shapes and structures. Please use this set to further expand your child's creations!