Crafted from steel wire, these 300pieces dressmaking pins is rustproof, and designed to maintain sharpness without bending or breaking during fabric manipulation The included portable storage box keeps sewing pins organized for quick access, while their smooth surfaces and 0.6mm fine tip glides through thin and thick fabric without snagging These multipurpose sewing positioning pins double as temporary fasteners for jewelry components like earring backs and pendant chains, combining functionality with creative versatility across multiple handcraft disciplines Perfect for pattern adjustments in sewing studios, dressmaking, beadwork project at home, marking intricate pattern, upholstery work, jewelry decoration, or fabric draping during fashion design classes and workshops Ideal for professional tailors, jewelry makers, and sewing craft enthusiasts working with textile, beads, or layered craft project requiring precisely temporary fixation