The Snappi® Diaper Fastener has revolutionized cloth diapering! This PINLESS diaper fastener offers a practical and reliable way to fasten a cloth diaper and has become one of the most important cloth diapering accessories in the world. Over 60 million have sold worldwide. 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.