SSBM Re-Freez-R-Brix Cold Bricks 4.5" x 4" x 1.5" Long Lasting Refrigerant Pack 12 Count Case

Long-Lasting Cooling: Maintains uniform chilling temperatures for 12 days Medical-Grade Reliability: Perfect for pharmaceuticals, lab samples, blood products, and bio materials Reusable Cold Pack: Suitable for repeated cold-chain use Compact Size: 4.5" x 4" x 1.5" – fits easily into insulated shippers or coolers Bulk Case: Includes 12 cold bricks per caseYou may also like 4 1/2 x 4 x 1 1/2" Re-Freez-R-Brix® Cold Bricks 12/Case LeakProof/Reusable.