A top seller, it's simply the best quality hot/cold pack in the industry. Constructed in a "clean room" environment, the PVC casing is specifically designed not to crack and withstand more repeated freeze/thaw or microwave heat cycles. Aqua Pearlsâ„¢ contain more gel beads, are suspended in purified distilled water and are pressure tested for the highest quality standards. Distributors can custom design an Aqua Pearlâ„¢ hot/cold pack for as few as 3,000 pieces. Complies with CPSIA, FDA. 7 1/2" W x 4 1/2" H x 1/2" D. Price includes 1 colour; 1 location imprint.