LORELL Adjustable-Arm Gaming Chair offers a comfortable, ergonomic seating option fit for various environments. Seat adjusts in height to accommodate people of most heights comfortably. 2:1 Ratio-Synch tilt mechanism features three locking positions for personalized comfort you can lock in for day-to-day convenience. Tilt-tension adjustment provides an additional way to customize your comfort. Height-adjustable armrests feature Polyurethane padding for added comfort. Comfort Spring seat cushion is made up of supportive coils and luxurious layered foam. Antimicrobial upholstery includes accent piping for stylish flair. Five-star nylon base moves on 2" smooth-rolling hooded casters and features 360-degree swivel for better mobility.