Brightly colored, high density polyethylene foam racks are ideal for floating tubes in water baths, tubs, or beakers. Closed-cell foam resists water absorption so racks can be washed and reused. The blue round rack features unique “X” slits to hold a variety of tube sizes. Racks include detachable carrying handles – easily lift samples out of baths. Not recommended for cleaning in autoclave. Pack of 5.