4pc Heavy-Duty Giant Steel Safety Pins - Choose 2-1/2", 3", 4" or 5" 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