Hey there! Looking for a durable first aid sign that'll actually last? This Locmorly aluminum sign is exactly what you need. Made from 100% rust-free strong aluminum, this thing is built to handle whatever Mother Nature throws at it - rain, sun, snow, you name it. The 12x16 inch size (that's about 30x40cm for our metric friends) is perfect for being highly visible without being obnoxiously large. The bright colors and clear font make it impossible to miss, which is exactly what you want in an emergency situation. Installation is a breeze with the four pre-drilled holes - no struggling to drill through tough metal. The rounded corners are a nice safety touch too, no sharp edges to worry about. The digital printing is super crisp and clear, plus it's got a protective coating to keep it looking fresh for years. Whether you need it for your workplace, warehouse, garage, or any other indoor or outdoor space, this sign does the job perfectly. It's one of those things you hope you never need, but you'll be glad it's there if you do!