30 degree synchronous swing from side to side allows the chair to fit perfectly for the user's requirement.4 gear tilt lock allows you users to personalise their postures.55mm seat depth adapts to people of all shapes and statures.Ergonomic seating available in black or grey with headrest option.Split back design reduces the chance of lumbar subsidence and hunchback.The backrest features polymer mesh fabric and comfortably accommodates people of different body shapes.Capacity up to 150kg.Choice of colour (grey or black) and with or without headrest.