Bio Plas 0052 Covers for 96-Well Microcentrifuge Tube Racks. This clear polypropylene cover easily snaps on to keep it firmly in place during transportation and storage. A recessed area in the top of the cover allows for secure stacking of racks one on top of each other. The snap on cover is designed to accommodate the extra height of our Screw
Cap Microcentrifuge Tubes. Two frosted writing areas for sample identification. 5/pack.