Aluminum signs are long lasting type of yard sign. They are very durable and its guaranteed to last for at least five years and will not rust. These aluminum signs come in corner radius of 3/4-inch. We have three sizes available: 12″x18, 18″x24″, and 24″x36″. These signs are waterproof and UV safe which will last for a very long time and are good for outdoors and indoors. The material we use is 0.40 aluminum sheet. These take about 4-5 business days.