Blue Vinyl ColPaC - Neck Contour, 23 Long (58 cm) 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. One year warranty. Available in 7 different sizes. Product photo may not exactly match the product offered for sale. Please refer to the product description.