These chairs are designed from tough steel coated with high-tech thermoplastic. The Thermoplastic protects the surface and is non-porous, meaning that even tough graffiti wipes away with an off-the-shelf solvent like WD-40. The chair seats are a comfortable, contoured 18 inches and designed with a diamond metal mesh to keep the chairs light and easy to clean. Available in a wide variety of high-gloss colors, these chairs are perfect for a food court or any outdoor or indoor public area where you need seating. These chairs are a great match for standard thirty-inch high tables.