The Rough-Batch* pieces are unique production pieces that don’t really fit-in with the standard editions. They are all unique and not categorized. You will receive a randomly selected rough batch piece which is sold “As-Is”. Some production samples, one-offs, the ones that didn’t pass quality control and collectibles from experiments. We recommend this set for more adventurous individuals, don’t expect a standard edition if you order a Rough-Batch. All pieces are tested for being in working condition. Material: Vary*, not specified.