Can they rebuild their shells if they are damaged?
Sometimes Giant African Land Snails’ shell will break off at the mouth of the shell, where the snail’s body emerges. This will re-grow quickly; just make sure the snail has plenty of cuttlefish and a good supply of food. If a snail falls from the top of its tank and makes a hole in the shell, you may need to repair the shell yourself or the snail may die. See the page on Shell Damage.