Aluminum LIGHTWEIGHT DESIGN: Commercial grade indoor/outdoor dining bar stool with slats will look great in any environment from kitchen, patios, bars, bistros and restaurants STACKABLE & SPACE-SAVING: Ergonomic seat structure with curved slat design and integrated arms for comfort and fixed plastic floor glides prevent damage to floors with a recommended stack quantity of 10 stools high DURABLE & STRONG: Powder coated steel frame with aluminum slats that are weather-resistant and UV protected and holds up to 350lbs. static weight capacity EASY CARE: Arrives fully assembled and ready for use and wipes clean with damp cloth PRODUCT MEASUREMENTS: Overall Size: 22.75"W x 24.5"D x 40.25"H; Seat Size: 17.75"W x 14.25"D x 30"H; Back Size: 15.75"W x 14.5"H