Excellent sealing performance, dust proof and air-proof, protect your item from oxidation and maintain the original luster. It is made of plastic material for durable to use. A nice storage box for your fossils, ores or mineral specimen. You can put it in your home or office to show what you like. Features -Color: Black,Transparent-Material: Plastic-Size: 3.50X3.50X3.50cm/1.38X1.38X1.38in-It is made with exquisite craftsmanship, with exquisite appearance and durable quality.- Transparent specimen box design, creative and chic, can display your specimen well.- Wonderful gift for your friends and families who love collecting specimen.- It is easy and convenient to clean, and easy to store when not in use.- Made of good plastic material with stable performance and long service life.Packing list: 12 x storage boxes