This baby gym can be used from newborns who have started kicking their legs! It's fixed by sandwiching it between sheets or towels. It makes a clanging sound just by kicking it lightly. Easy to assemble. Comes with a case (the case has sticker residue). The strings have faded over time, but are in good condition without any damage. It will be disinfected with alcohol before shipping. Please understand that this is a used item, and thank you for your consideration. m(_ _)m