Ebay offers Commercial White/Black Plastic Folding Chairs Stackable Picnic Party, Set of 4-6 for $47.68 with free shipping. 

Product Description:
Upgrade your event seating with our Plastic Folding Chairs. Designed for both indoor and outdoor use, these chairs feature a sturdy metal frame and comfortable plastic back and seat. With their weather-resistant materials and ergonomic design, these chairs offer a blend of durability, comfort, and style. Perfect for family gatherings, parties, weddings, and more, these lightweight and stackable chairs are easy to transport and store, making them an ideal seating solution for any occasion.