base		Five arm base made of solid polyamid. The base, as opposed to many other bases, does not have metal construction inside. It is one plastic cast. Thanks to that the base is very resistant and trouble-free (consistent with the norm EN 1335-1). Black colour. black (plastic)
gas-lift		Gaslift allows for smooth height adjustment. Cover of the gaslift is black plastic.
mechanism		Three types of mechanisms: SYNCHRO (S) – synchronious adjustment of backrest recline and seat, ASYNCHRO (G) – allows for adjustment of seat and backrests angle and separately adjustment of backrest angle, CPT (A) – allows for separate adjustment of backrest angle and distance between backrest and seat.
castors/ glides		Two types of castors – soft castors for hard surfaces (parquet, floor panel) or hard castors for soft surfaces (carpet, floor lining). Castors are equipped with brakes, preventing chair from moving away when chair is without load.
seat		Profiled internal plastic part lined with cut foam of high density. Seat upholstered with fabric.
back		Deciduous plywood lined with cut foam of high density. Backrest upholstered with fabric. Height adjustment.
armrests		P15PP – Armrest 2D adjustable, polypropylene pad. Colour of armrest frame: black. P15PU – Armrest 2D adjustable, polyurethane pad. Colour of armrest frame: black. P15 WOOD – Armrest 2D adjustable, wooden pad. Colour of armrest frame: black. P21 – Non-adjustable armrest. Armrest colour: black. P22 – Non-adjustable armrest. Armrest colour: black. P23 – Non-adjustable armrest. Armrest colour: black.

	10S / 10G / 10A	20S / 20G / 20A
total height	990-1160 mm	940-1110 mm
total width	650 mm	650 mm
total depth	700 mm	700 mm
seat height	420-550 mm	420-550 mm
seat width	490 mm	490 mm
seat depth	430 mm	430 mm
P15 armrests height	610 mm	610 mm
P21 armrests height	660 mm	660 mm
P22 armrests height	650 mm	650 mm
P23 armrests height	650 mm	650 mm