These are parts from Takara Tomy's "Plarail Thomas the Tank Engine" series. Please understand that these are used items. Returns and exchanges are not accepted. AI Explanation: The black blocks are coal, the brown blocks are wood, the yellow blocks are hay, and the white blocks are stone cargo. These are used as cargo for Thomas the Tank Engine to transport. The brown freight car at the bottom of the image is loaded with wood. These parts may be included in set products such as the "Thomas the Tank Engine and Percy and the Dragon Set." Set of 12 block-shaped accessories for model railways, consisting of various colors and shapes. - Colors: Black, brown, beige, orange, white, yellow - Shape: Block-shaped - Quantity: 12 total - Usage: Model railway accessories Thank you for viewing.