A.P.I. Firearm Storage Bags are safe for use in the temperature range of -40˚F to 140˚F, so most indoor temperatures will provide a safe environment. A.P.I. storage bags are not intended as carry bags or field use bags. Avoid excessive handling. Keep away from sharp objects that could puncture the bag, and use extra care when inserting items with sharp edges such as Picatinny rails.