Activates easily to provide instant relief Provides an anesthetic effect. Reduces swelling Relieves aches and pains This item is not for sale in Catalina Island The product is 4 Inches X 5 Inches For activation of cold pack please refer the indication on the label. Immediate first aid treatment for contusions, sprains, abrasions and other minor injuries.. Dynarex Instant Cold Pack, 4 Inches x 5 Inches, 24-Count. Activates easily to provide instant relief. Provides an anesthetic effect. Relieves aches and pains. This item is not for sale in Catalina Island. The product is 4 Inches X 5 Inches. For activation of cold pack please refer the indication on the label. Note: It is imperative for an end user to thoroughly shake the cold pack after activation, for up to 30 seconds. By doing so, the cold pack will reach the target temperature range and stay there for at least 20 minutes. By not doing so, the cold pack’s granules cannot mix completely with the water inside and as a consequence, the cold pack will be not as cold.
These are a good sized ice pack. Not big enough to wrap an entire limb, but use 2 and ace wrap and you're all set. Dunno what the complainers are going on about, except being ignorant of what an instant ice pack IS and how they work.They won't last an hour, no, but, you're only supposed to keep ice on 20 mins max anyway. And for an emergency situation these are ideal. They store well, not easily damaged or accidentally activated, and the sooner you get ice on the b..