Ergonomic mid-back chair is endorsed by The World Chiropractic Alliance Ergonomically designed for comfort and support. The F3 features a wide selection of simple adjustments for a personalized fit. Includes synchro tilt and adjustable tilt tension which lets you control the amount of resistance you feel as you lean back. Tilt lock lets you lock the chair into its upright position. Height- and width-adjustable armrests help relieve shoulder strain. Armrests provide a soft place to rest your forearms and elbows while keeping your shoulders relaxed and avoiding muscle strain. Easily adjust the height and width to prevent slumping and to free up more space in which to work. Lumbar cushioning supports your lower back and enhances the natural curve of your spine. 1-touch seat-height adjustment... Less

Student chairs feature built-in lumbar support. Full-sized seat and back provide a healthy sitting posture. Chair shell is made of heavy-duty polyethylene. Two integral grips allow easy handling of chairs. Chairs stack on desk for easy classroom cleaning and are equipped with four nonmarring floor glides. Chairs stack five high.Chrome Frame18" x 17.25" x 26.62" - Polyethylene SeatOverall dimensions: 18" Width x 17.3" Depth x 26.6" Height; Navy Blue; Chrome frameChair shell is made of heavy-duty polyethylene; stacks 5 high2 integral grips for easy handling of chairsChairs stack on desk and are equipped with 4 nonmarring floor glidesStudent chairs with built-in lumbar support and full-sized seat and back for good posture

HON G43H65Y Lab-Task Shell Stool, With Arms, Olson Series, Garnet Shell with Chrome Frame Olson stools offer great design, support and comfort. They are ideal for the lab or lunchroom, high countertop or table.Features:Pol ymer seat and back shell.7/16" solid steel rod frame.Five-star base with adjustable foot ring.Meets or exceeds ANSI/BIFMA and ISTA performance standards.HON Limited Lifetime Warranty. Ergonomic Features: Pneumatic Seat Height Adjustment: Regulates height of chair relative to floor.360¡ Swivel:Standard on nearly every executive and task chair.Dimensions:S eat:18Ó wide x 18Ó deep x 1/8Ó thickAdjustable Seat Height:20-3/8" to 30-1/2"Back:20Ó wide x 15-1/2Ó high x 1/8Ó thickBetween Arms:17" wideFoot Ring: 20ÓAdjustable Foot Ring Height:7-1/8Ó to 12- 3/4ÓEnvironmental ... Less