**PENCHEN Ergonomic Office Chair - Adjustable Height, Headrest & Retractable Armrests, High-Back Executive Mesh Chair with Tilt Function, Breathable & Swivel Rolling Chair for Home & Office Workspaces**

Features: BUILT TO LAST: Firm nylon base with solid metal construction, five-pointed feet design, anti-slack memory foam, and selected PA casters ensures durable and stable use. HEIGHT ADJUSTABLE: The height can be adjusted from 113cm/44.5" to 122cm/48" simply by pressing the lift lever. HEADREST&ARMREST: Adjustable headrest gives your neck reasonable support. The armrests can also be retracted for 90° to satisfy your needs. ROCKING MECHANISM: 90°-107°Adjustable. By loosening the tilt knob, the seat-back can slightly tilt with ease (unlockable) when you lean back and it springs back after you sit up. RELAX: Widened shoulder support offers full wrapping. 5 smooth casters allow rolling in all directions. Ergonomic backrest design fits well with the human-spine, and effectively relieves the pressure from back pains. BREATHABLE: High-density memory foam provides a comfortable sitting experience without any stuffiness, and the high-elastic back mesh design frees you from sweats. Specifications: Item Name: Office Chair Material: Nylon+Foam+Metal Color: Black Max load: 136kg/300lbs Product Size: Overall: 58.5*57*112-125cm/23*22.4*44.1-49.2" Detailed: Please refer to the image Package Size: 60*28*59cm/23.6*11*23.2" N.W: Approx.11kg/24.3lbs G.W: Approx.13kg/28.7lbs Notes: 1. Size information is just for reference only, please allow 1-2cm (0.4-0.8") differences due to manual measurement, thanks. 2. Item color displayed in photos may be showing slightly different on your monitor since monitors are not calibrated the same. Package List: 1* Office Chair

HEIGHT ADJUSTABLE: The height can be adjusted from 113cm/44.5inch to 122cm/48inch simply by pressing the lift lever.

HEADREST&ARMREST: Adjustable headrest gives your neck reasonable support. The armrests can also be retracted for 90° to satisfy your needs.

ROCKING MECHANISM: 90°-107°Adjustable. By loosening the tilt knob, the seat back can slightly tilt with ease (unlockable) when you lean back and it springs back after you sit up.

RELAX: Widened shoulder support offers full wrapping. 5 smooth casters allow rolling in all directions. Ergonomic backrest design fits well with the human-spine, and effectively relieves the pressure from back pains.