The Meiji Big 400G is a popular Japanese chocolate bar produced by Meiji, a well-known confectionery brand. It features a rich milk chocolate coating with a crispy biscuit center, offering a satisfying crunch and creamy sweetness. The "400G" refers to its large size (400 grams), making it ideal for sharing or indulging over time. It's a favorite among chocolate lovers for its generous portion and balanced texture.