Model Guardian Maximum weight <150kg/330lbs Recommended weight <125kg Foam type High density foam Frame type Nylon Adjustable headrest Yes, two-dimensional Adjustable armrests Yes, two-dimensional Adjustable backrest Yes, 90° 135°, lumbar support Mechanism type Multi-lock mechanism Rocking mechanism Yes Gas lift class & height BIFMA tested level 4, max. 100mm Base size & type 350mm nylon base Caster size & material 65mm nylon caster Cover material High tensile mesh with leatherette Overall dimension (W x D x H) 69 x 70 x 118-132cm Backrest dimension (W x H) 50 x 76cm Seat dimension (W x D x H) 50 x 50 x 48-58cm Armrests dimension (W x H) 70 x 67-84cm Product weight 17.2kg EAN Code: 4710562758313