Newly developed PU leather covering with breathable micro-pores New upholstered 4D Armrests adjustable in four directions New powder-coated base made from solid aluminium First class rocking mechanism Premium stainless-steel handle New belt pass-throughs with a metallic look Large, quiet-running 60mm castors Office Chair Certification *Certified BS5852 (UK) and DIN EN 1335-1/2/3 standards (GERMANY)