Check the listing for details. INSTANT COLD COMPRESS ICE PACKS 6"X9" CASE OF 24 Calcium AMMONIA NITRATE BASED. Condition: New. Listed at 24.95 USD. EVER READY FIRST AID INSTANT COLD PACK 6"x9" EACH - CASE OF 24 PACK - Ever ready first aid instant cold pack is a replacement for crushed ice. It contains Calcium AMMONIA NITRATE and water. You must squeeze it to activate it and shake packet to mix content. These ice packs are for 1 time use, case contains 24 ice packs. Used for immediate first aid treatment for contusions - sprains - abrasions and other minor injuries. Specifications for this item Brand Name Everready First Aid Ean 0610708610755 Item Weight 5.74 kilograms (12.7 pounds) UNSPSC Code 50500000 UPC 610708610755EVER READY FIRST AID INSTANT COLD PACK 6"x9" EACH - CASE OF 24 PACK - Ever ready first aid instant cold pack is a replacement for crushed ice. It contains Calcium AMMONIA NITRATE and water. You must squeeze it to activate it and shake packet to mix content. These ice packs are for 1 time use, case contains 24 ice packs. Used for immediate first aid treatment for contusions - sprains - abrasions and other minor injuries. Specifications for this item Brand Name Everready First Aid Ean 0610708610755 Item Weight 5.74 kilograms (12.7 pounds) UNSPSC Code 50500000 UPC 610708610755