Pal Surgical Works offers Wire Patterned Test Tube Stand. Pal Surgical Works is an ISO 9001:2000 certified company. Wire Patterned Test Tube Stand are submersible, autoclavable racks which are stackable when empty. These are available in different colours and are made of a special blend of Polypropylene that makes it sink in a water bath and maintain their stability even in agitated water. These space saving racks can easily be disassembled for cleaning purposes. The base of the Wire Patterned Test Tube Stand is in the form of a grid with square openings. It has fold up sides and end bars that lock into rack tops.