This Herman Miller Aeron Classic OEM C Size Seat is the perfect seat replacement for your Herman Miller Aeron chair. Crafted with high-quality materials, this chair seat replacement is designed to provide comfort and durability for long hours of use. The chair seat replacement is made by Herman Miller, a renowned brand in the furniture industry. It is ideal for use in businesses and industries, as well as in your home office. G1- Graphite (frame finish). 23103- 8Z Pellicle graphite (8Z Pellicle).