ERGOS ONE chairs, designed to offer exceptional resistance and durability, can be easily integrated into any type of space or environment, guaranteeing a correct posture and perfect integration thanks to the wide range of colours available and their elegant and ergonomic design. Imagine a chair that adapts perfectly to your body, offering unrivalled lumbar support and perfect ergonomics. Meet ERGOS ONE – a chair made entirely from double-walled polypropylene, combining durability and lightness in one piece! Used by millions of students every day, all over the world. Ideal for any type of indoor/outdoor environment and space; formal/informal; work/leisure. SUPERIOR LUMBAR SUPPORT - Reduces fatigue caused by all-day sitting. CUTTOUT BACK - allows lower back breathing for greater comfort. WIDE SEAT - Maximizes comfort and attention in the classroom. SMOOTH EDGES - Seat’s rounded edges designed for a proper knee flexion angle helping blood circulation ANTI-ROCKING - Back legs angle offers greater stability certified by FIRA INTERNATIONAL and comply with the EN1729 Part 1 & 2 standard (European standard for dimensions, resistance and stability) Washable 100% recyclable 20 year warranty Minimum Order Quantity: 6 chairs Dimensions: Size Mark Seat Height (mm) Height (mm) Width (mm) Depth (mm) Matching Table Heights (mm) Weight (kg) Weight Tolerance (kg) 1 (age 3-4) 260 470 300 320 460 1.19 50 2 (age 4-6) 310 520 300 360 530 1.30 70 3 (age 6-8) 350 650 420 390 590 2.30 100 4 (age 8-11) 380 700 430 410 640 2.45 120 5 (age 11-14) 430 770 500 500 710 4.41 160 6 (age 14+) 460 800 500 500 760 4.55 170 7 (age 14+) 510 850 500 500 4.85 180 Please contact our sales team if you require any of the following: Linking chairs available for size mark 5, 6 and 7 Upholstery seat option for added comfort Transport trolley Legacy Sku: CS43447, CS43448, CS43449, CS43450, CS43451, CS43452, CS43453