Give your arms a break The height-adjustable armrests from Topstar are the right choice - guaranteed! That's because comfortable and ergonomic seating is not just about the muscles in your back, buttocks and legs - it's about your arm muscles too. That's why you should consider matching ergonomic armrests when buying your Topstar Net Pro 100 or Soft Pro 100 office chair. The adjustable armrests from Topstar are height-adjustable, highly stable and feature an elegant curved design. The height-adjustable armrests will turn your Topstar Net Pro 100 or Soft Pro 100 office chair into a real feel-good office chair - and they look great too. The adjustable armrests are also extremely simple to assemble. It really is this easy to give your arms the daily relaxation they need.