7 x 12 inch medium size tyvek drawstring sample bags for the storage and transport of geological specimens, such as rock chips, mineral ores or soil samples. High quality, the material repels water, while allowing the contents to breath. It can also withstand -70°C to 118°C. (excluding the nylon cord). The tough material is difficult to tear, ensuring the contents stays inside. Specifications: Size: 7 x 12 inches, (17.7 x 30.4 cm) Closure: Drawstring with nylon cord Label: Tyvek paper, sewn in, 3 x 5 inch
