Kwik-Kold® Single-Use Instant Cold Pack offers a convenient and cost-effective method of delivering localized cold therapy. Constructed of a non-woven material to prevent condensation and provide consistent, controlled temperature therapy. Ready when you need it, the cold pack requires no special preparation or refrigeration. Store at room temperature and activate in an instant with a firm squeeze and a gentle shake. Approximate peak temperature and therapeutic time duration: 33°F/0.5°C, 30 minutes.