KLASSE Pearl Head Pins are designed for holding fabric layers and patterns in place during quilting, dressmaking, and general sewing at home or in the studio. The pack includes 100 straight pins made from nickel-plated tempered steel with a 38 mm length for controlled placement when piecing, fitting, or pinning seams before stitching. Store them dry between uses and replace any bent pins to help protect fabric and maintain accurate pinning.