Office Chair

Product Details

• Color:Light Grey
• Pattern:Solid
• Size:Pack of 1
• Item Dimensions:28.34 x 28.93 x 51.18 inches
• Item Weight:40.8 pounds
• Maximum Weight Recommendation:300 kg
• Included Components:Arm Pad, Caster, Chair, Cushion, Headrest
• Number of Items:1
• Unit Count:1 Count
• Model Name:office chair
• Model Number:B300PRO-US-M212
• Form Factor:Armchair, Desk Chair, Recliner Chair
• Shape:L-Shape
• Theme:Meeting, Office, Studio, Video Game
• Additional Features:Adjustable Backrest, Adjustable Headrest, Adjustable Height, Adjustable Lumbar, Ergonomic
• Recommended Uses For Product:Drafting, Gaming, Office, Reading, Relaxing, Sleeping, Video Game
• Room Type:Bedroom, Drawing Room, Game Recreation Room, Living Room, Office
• Age Range Description:Adult, Teen
• Surface Recommendation:Hard Floor
• Indoor Outdoor Usage:Indoor, Outdoor
• Item Highlight:Adjustable Backrest ＆Seat Depth, 6D Flip-Up Armrests, 3D Wide Headrest, Breathable Mesh, for Long Work Sessions, Light Grey
• Manufacturer Part Number:B300PRO-US-MS
• Material Type:Mesh
• Frame Material Type:Plastic
• Product Care Instructions:Wipe Clean
• Seat Material:Mesh
• Fill Material:Mesh, Polyester, Polystyrene
• Upholstery Fabric Type:Nylon, Polyester
• Furniture Base Movement:Swivel
• Reclining Position Count:110-135 Degrees
• Number of Height Positions:5
• Back Style:Split Back
• Style Name:Modern
• Finish Types:Polished
• Arm Style:6D Flip-up
• Furniture Finish:Mesh
• Cushion Style:Curved Edge, Mesh
• Leg Style:Star Base
• Item Dimensions D x W x H:28.34"D x 28.93"W x 51.18"H
• Seat Back Interior Height:22.83 inches
• Seat Height:21.77 inches
• Seat Depth:18.5 inches
• Seat Length:19.09 inches
• Arm Height:28.93 inches
• Chair Backrest Width:19.48 inches
• Adjustable Seat Depth Maximum:18.5 inches
• Adjustable Seat Depth Minimum:16.53 inches
• Adjustable Seat Height Minimum:18.42 inches
• Adjustable Seat Height Maximum:21.77 inches
• Assembly Instructions Description:Attach The Wheelbase To The Gas Lift Cylinder, Mount The Seat Mechanism, Connect The Backrest, And Install The Armrests And Headrest

About this item

• ADJUSTABLE LUMBAR SUPPORT THAT MOVES WITH YOU Long hours at your desk can leave your lower back tense and unsupported. The B300 PRO ergonomic office chair uses a spring-assisted 4-way lumbar system that adjusts in height and glides forward independently. It also flexes your body to maintain steady contact as you move. Lean forward for focused work, sit upright through meetings, or recline to recharge. The lumbar support follows every shift, helping ease pressure and keep you comfortably centered from morning to night.
• RAISE THE BACKREST. FIND YOUR FIT. Most chairs force your body to adapt to a fixed backrest. The B300 PRO does the opposite. Its independently height-adjustable backrest lets you position the lumbar support where your lower back needs it. This creates a more natural sitting position and fuller back contact for users of different heights. Whether you’re working through a deadline or leaning back to unwind, this ergonomic chair delivers a personalized fit that feels stable, balanced, and effortless.
• SIT DEEPER. STRETCH FARTHER. A seat that does not match your leg length can create unwanted thigh pressure and make long hours feel even longer. Adjust the seat depth to create a better fit and fuller thigh support. When it is time to unwind, pull out the retractable footrest and elevate your legs to help ease pressure. Work through a deadline, read, game, or take a well-earned break. The breathable mesh seat keeps air moving, so this desk chair helps you stay cool and comfortable from start to finish.
• RECLINE, STRETCH OUT, RESET Switching from focused work to a well-earned break should feel effortless. This computer chair uses a smart weight-sensing recline mechanism to match resistance to your body weight—no manual tension adjustment needed. Lean back smoothly, extend the footrest, and stretch out whenever you need a reset. Whether you’re taking a quick break, watching a movie, or relaxing between tasks, the chair stays balanced and supportive as your body settles in.
• FULL-BODY SUPPORT FROM HEAD TO TOE True comfort should support more than your back. The oversized 3D headrest adjusts to cradle your neck during long video calls, reading, or relaxed reclining. The 6D armrests rotate, slide, lift, and flip up to support typing, creative work, or sitting cross-legged. Pull out the retractable footrest whenever your legs need a break. Whether you use it as an everyday office chair or an after-hours gaming chair, the B300 PRO keeps you comfortably supported from head to toe.
• BUILT TO LAST. BACKED BY SIHOO. Built with premium materials and rigorously tested to meet BIFMA, SGS, and TÜV standards, the B300 PRO is designed for dependable daily use. Every chair comes with a 3-year warranty and 30-day hassle-free returns, giving you confidence from day one. Choose with confidence and enjoy lasting ergonomic comfort every day.