These are made from 5.5 ml thick polyethylene and have an industrial-strength bottom seal. Mineral explorers use them for storing and transporting rock or core samples. They can be closed with cable ties and written on with a marker.
Available in several sizes, the sample bags are sold in packs of 100 bags.
*Our minimum Order Quantity for this product is 100 cases. This may result in longer wait times for some orders.*