Unique fully functional safety pins - dozens of uses at home, work and school * Strong 1.8mm-diameter spring steel, chrome plated for superior rust and corrosion resistance * Sold in sets of 4 pins per-size - choose pin length 2-1/2", 3", 4" or 5" * safety hasp keeps pin closed & conceals sharp point * Perfect for heavyweight material like canvas, leather, vinyl, upholstery