Features of the Chattanooga Polyurethane ColPac: • Half Size 6 1/2" x 11" (17cm x 28cm). • Designed for heavy clinical use. • Filled with a non-toxic silica gel that remains pliable throughout treatment. • Delivers up to 30 minutes of soothing relief from acute pain, swelling and fever. • Latex free. • Available in 4 different sizes. • One year warranty. The product referenced on this detail page is sold be Each.