Gamtimer Gaming Chair, 400 lbs Adult Chair, High Back Computer Chair with Footrest and Linked Armrests, Office Video Game Chair with Lumbar Support (Blue)

Large space ergonomic design Enlarged seat designed for adults (22 inches long, 21 inches wide, 51 inches high, adjustable height)
Triple support system: adaptive high back headrest + 3D lumbar support + widened arc backrest BIFMA certified military-grade structure, maximum load-bearing 400 pounds.
Full scene multi-mode adjustment 90°-155° unlimited tilt + 360° rotating chassis
Smart linkage armrest: automatically folds up when lying flat to maintain elbow support Hidden telescopic footrest (extendable to 26 inches), instantly transformed into a nap bed
Military-grade comfortable sitting feeling 4D cold foam sponge layer + high elastic spring (density 65kg/m³) anti-collapse Racing-grade breathable hollow back panel, 40% more breathable Fully wrapped side wing design effectively disperses hip pressure
Industrial-grade durable structure 20mm thickened steel frame, rubber casters passed 100, 000 durability tests Silent universal wheels, passed ASTM roller test (1000 miles wear rate <3%) Level 3 explosion-proof gas rod, compliant with EN ISO 12585 standard
Worry-free after-sales service guarantee Assembly guide (average installation time <15 minutes) 30-day unconditional return and exchange + 12-month core component warranty Customer service team response time <2 hours