This box has all wood structure, fine workmanship, beautiful and practical, conducive to long-term preservation of biological slides. The storage box is natural, pollution-free, non-toxic, odorless, breathable, and can store 100 slides. Metal clasp lock is exquisite and stable, not easy to oxidize. The number of slide coding inside is clear at a glance,convenient to take. The slot is even, and the slide is arranged neatly and fixed, to prevent friction or breakage.