The Snappi Diaper Fastener revolutionized cloth diapering! Over 50 million have sold worldwide. It is an EASY to use fastener that offers a practical and reliable way to fasten a cloth diaper, replacing the diaper pin. It comes in a variety of colors and is made from a stretchable non-toxic material, which is T-shaped with grips on each end. These grips hook into the diaper fabric to ensure a snug-fitting diaper with enough natural movement for the baby.