It took 8 years by a professional tanner with 27 years experience to perfect this Basic Home Tanning Kit from The Tannery. It gives you the knowledge and tools to complete a hair-on tanning process for an averaged-size deer hide. The entire process is completed on a board, leaves minimal mess and doesn't require large vats or tubs. All chemicals are nontoxic and biodegradable. The kit includes an instructional book, 1 bottle of tanning crystals, 1 bottle of tanning oil, a hide scraper, and sandpaper. Includes instructions and tools for tanning an averaged-size deer hide Leaves minimal mess and doesn't use large containers Nontoxic and biodegradable chemicals