Made of durable hard plastic and strong spring mechanism ensures longlasting product service life. Every piece of magnet is designed to be locked with needle to prevent it from dropping, and keep toddlers from the danger of swallowing.Secure food bags (chips,frozen veggies, pretzels, etc); post pictures, notes, shopping lists; organize mail, papers or file folders; hang up your kitchen stuff and so on.We offer more color options than you expect. Pick your favorite colors and enjoy the pleasures of how these colorful clips make your home, kitchen or office a lovely and joyful place to stay in!