KLASSÉ curved safety pins are a curved-profile fastener for quilting, sewing, and crafts when you want layers held temporarily but securely. You get 300 pins in 25 mm (1") Size 1, a handy length for small sections, applique positioning, and controlled basting through stacked fabric. Use within the seam allowance where possible, and store closed in a dry container so points stay smooth and fabrics stay snag-free.