The Milan Mesh Black operator chair is fully ergonomic and has a 4 lever heavy-duty mechanism with Seat Slide. The luxurious moulded foam seat, mesh back and five-star spider base ensure comfort and durability | The product comes with a level 6 AFRDI rating and is BIFMA tested | AFRDI Level 6 | BIFMA Tested | AFRDI Load Rated To 160kg | 10 Year Warranty