The Chattanooga ColPac Blue Vinyl Standard is designed to help relieve muscle soreness or pain associated with injury or working out. Easy to use, the convenient, standard size 11 in x 14 in (28cm x 36cm) is ideal to treat the shoulder, back, neck, knee, IT-band, ankle or hip-and can help reduce swelling and fevers. Use this ice pack post-workout or to help heal an injury, the Chattanooga ColPac Blue Vinyl Standard remains flexible and comfortable when using and lasts up to 30 minutes. Designed with durable blue vinyl, the Chattanooga ColPac can be used multiple times. 11 X 14 Inch Blue Vinyl Reusable 1 Each