The indoor-outdoor sled base stack chair with air-vent back is a practical solution when you need to have extra chairs available for special events and unexpected company.A heavy duty, plastic seat and back, molded in an ergonomically contoured design, provide great comfort and reinforce good posture. The air-vented back on this chair allows air to circulate, keeping you cool. A powder coated frame finish on the sled base protects it from scratches and a front support brace gives it added strength. In fact, total weight capacity for this chair is an amazing 881 pounds. These chairs feature a handle cutout in the seat back and stack up to 5 high for transport and storage. Non-marring plastic floor glides protect your floors by sliding smoothly when you need to move the chair. No assembly is required - this chair ships to you fully assembled.Designed for both commercial and residential use, this multipurpose, stackable chair is a great choice for training rooms, sidewalk cafes and your home.