Clover's Wonder Pins are a revolutionary pin concept leveraging the benefits of both straight pins and safety pins into a single pinning tool. Wonder Pins are strong enough to pierce multiple layers but thin enough to go through fabric without leaving holes. They are so easy to pin through fabric and always easy to see. Wonder Pins are great when a sturdier thinner pin is necessary to pierce thick layers without bending. A much better way to pin baste quilts.