The vegetable-tanned leather is dyed navy. The puzzle pieces use Elbamatt leather. The back is bonded with suede and finished with machine stitching. The thread is beige. * Leather is a natural material and may contain small scratches and wrinkles unique to leather. Please understand this as a characteristic of the product. * The color may appear slightly different depending on the photography. Please understand. * Please refrain from purchasing if you are looking for a perfect item, as this is a handmade product.