Portable Field Kit for Rock & Mineral Collectors Sometimes plastic is the perfect material. This specimen collecting box is an example. When you're out collecting samples of rocks or organic materials, you want something compact, durable, lightweight, and reusable. This specimen collecting box fits easily in your backpack or car, giving you a reliable way to preserve and organize samples while you're out collecting. The box can be divided into 3 to 8 compartments using the removable panels, and features a robust closure clamp—not those wimpy latches that wear out first and make the rest of the box useless. Measures approximately 4 5/16" x 2.5" x 1". Pictured specimens not included Perfect for amateur naturalists, educators, and serious collectors who want to build their collection one specimen at a time.