1) Can be activated instantly; 2) CE,MSDS,FDA,ISO13485 and ... Detailed Product Description Neoprene Bottle Warmers 1) Can be activated instantly; 2) CE,MSDS,FDA,ISO13485 and ISO9001 ... in water for 5 minutes.3) Cold usage: Lay the gel pack flat in freezer for at least ... mucous membrane scar after surgery5) cold compress: physical therapy for traumatic hemorrhage, heatstroke, itch, headache, strain, scald ...