Filled with a non-toxic silica gel that remains pliable throughout use</br>Delivers up to 30 minutes of soothing cool relief from acute pain?? swelling and fever</br>Latex free packaging</br></br>Product Description</br></br>here's a ColPac for Every Application. Four different sizes of black polyurethane ensure effective cold therapy regardless of body area or shape. Also available are seven sizes of blue vinyl. One year warranty.</br><br/>http://www.amazon.com/gp/product/B000TFZ4WA