Students sit most of the day, provide comfortable seating in your classroom or training room with these popular ergonomic plastic stack chairs. These student stack chairs are favorable in classrooms due to their ergonomic seat shell and lightweight design to move easily around the classroom. The ergonomic comfort-formed shell has a waterfall edge to reduce leg pressure and an air-vented lower back. Plastic chairs are easy to clean for high traffic environments. Spills in the seat drain through the drain holes to prevent water pooling. These stackable school chairs may be used outdoors for school events, protect the chairs from wet weather. We consider this student stack chair to be the premier stack chair - essential for every school and classroom setting. After parent-teacher conferences or school events these chairs stack neatly up to 20 high and can be transported on our steel stack chair dolly. Plastic Stack Chairs. Color: Material: Metal, Plastic, Polypropylene. Ergonomic Contoured Shell Design with Waterfall Seat. Overall Dimensions: 19. 25"W x 23. 5"D x 32"H. Seat Dimensions: 17. 75"H x 17. 75"W x 15. 5"D. Back Dimensions: 17"W x 15"H. Rated for up to 880 lbs. Based on 6-8 Hours Use. Care Instructions: SW-Solvent and water based cleaner such as foam. Fully Assembled. Meets or Exceeds ANSI/BIFMA Standards; Rated for Commercial Use. 3 Years Limited Warranty. Multipurpose Stack Chair. 880 lb. Weight Capacity. Stack Quantity: 20. Ergonomically Contoured Design with Gray Plastic Back and Seat. Vented Back and Seat Drain Holes assist in drying. Double Support Braces. Gray Powder Coated Frame Finish with Plastic Floor Glides. Designed for Commercial Use. Ships Fully Assembled. Widely used and popular plastic stack chairs will satisfy your everyday or temporary seating needs in any commercial establishment or in the home.