More 90 DegreesIn addition to your knees, keep your elbows at 90-degree angles. You can rest your forearms on your desk to achieve this position – to do that, make sure your chair is at the right height. Your elbows don’t have to be a perfect 90 degrees – you just want to make sure you don’t tighten your shoulders and that you’re close enough that you don’t have to slouch. Sometimes, the angle will be more obtuse.Like any of your office rooms, make sure you still use the Office Chair Singapore of Ardent Office Furniture (AOF) Singapore. Office Chair Singapore By AOF Singapore has been trusted for a dozen years as an expert Office Chair Singapore with good quality and the best price for your office room.For more information, please visit the AOF Singapore website or directly contact AOF SINGAPORE via email at info@ArdentFurniture.com or via telephone at +65 6783-7911 (For Singapore or 021 3111-6161 (For Indonesia) to get a special price from us !