The Ideas 0.55x45.5mm numbered head pins (box of 60, C9806) are the indispensable sewing accessory for organizing blocks and assembly sequences in patchwork. With thin metal points 0.55 mm in diameter and 45.5 mm in length, these pins penetrate the fabric layers without damaging the fibers. Their great advantage lies in the flat plastic heads numbered from 1 to 12 (with 5 units of each number), which allows you to visually identify the correct assembly order of strips, squares, and panels. Their flat profile also allows for smooth ironing over the pieces and keeps them aligned during sewing. It is the ideal tool for patchwork, quilting, and complex garment making enthusiasts who require rigorous pattern organization.