naphthalene ball,put them under the bed,chest,etc.it can keep the worms,mosquitoes away and keep room last long ... .W:50G 3.Color:there are all kinds of colors so that can give you a colorful life. 4.Fragrance: lemon,lavender,ocean ... very good and the price is very reasonable,every packing that you like is ok. have a good choice, have a ...