This ergonomic office chair will bring you comfort and support in your working spaces. The back and seat are adjustable, allowing you to find the most comfortable position for sitting. The backrest can also be smoothly adjusted from 90° to an indulgent 135°, allowing you to find the perfect angle for relaxation or focused work. In addition, the linkage armrests and retractable footrest offer you arms and legs optimized comfort. Equipped with the 5-claw base and SGS gas rod, the mesh desk chair stays stable on the ground. It also moves smoothly with 5 universal wheels. Bullet Point: Infinite Backrest and Retractable Footrest: The 90°-135° reclining backrest features a lockable tilting function, enabling you to lie down to unwind with ultra comfort. Additionally, the 40 cm retractable footrest provides you with added space to rest your legs. Ergonomic Design for Relaxation: This ergonomic mesh office chair is designed with a comfortable headrest, curved seat, and linkage armrests to perfectly fit the curves of your body. The chair enables you to sit or lie down with a relaxing and healthy posture. Office Chair with Height Adjustment: The back of the chair can be adjusted within the 7.5 cm height range by twisting the back tension knob, while the seat is adjustable from 44.5 cm to 51.5 cm. As thus, you can choose the optimal height for a variety of purposes, such as reading, working, or studying. Premium Mesh Fabric and Sponge Padding: With high quality mesh fabric and high density sponge, the swivel desk chair ensures excellent breathability and resilience for a comfortable sitting experience. The mesh fabric and sponge filling are also strong and built to last, offering a long period of service. 5-Claw Metal Base and 5 Universal Wheels: The 5-claw base increases overall steadiness, while the SGS gas rod ensures secure and sturdy support. Moreover, this mesh office chair also comes with 5 rolling casters for you to effortlessly move it in any direction. Features: Angle Lock and height adjustable levers for easy controlling Back knob for back height adjustment 90°-135° adjustable angles offer the most suitable sitting posture Breathable mesh fabric and high elasticity sponge offer you ultimate comfort Ergonomic headrest, curved seat, and linkage armrests support your head, neck, hip, and arms Retractable footrest enables you to stretch legs SGS gas rod for stable lifting and strong weight capacity 5-claw metal base ensures overall stability 5 universal wheels for hassle-free movement Specifications: Color: Black Material: Mesh Fabric, Sponge, Metal, PU Product Dimensions: 70 x 68 x 109.5-116.5 cm (L x W x H) Size of Seat: 52 x 50 cm (W x D) Height of Seat: 44.5-51.5 cm Thickness of Seat: 10 cm Outer Spacing of Armrests: 70 cm Height of Armrests: 64-71 cm Size of Footrest: 35 x 22 cm (L x W) Max Length of Footrest: 40 cm Max Load Capacity: 135 kg Net Weight: 14 kg Package includes: 1 x Mesh Office Chair 1 x User Guide