supply of revolving chairrevolving chair,supply of revolving chair with center tilt mechanism type of chair: high back. tilt mechanis m: center tilt mechanism. locking mechanism: upright locking. seat depth adjustment: fixed type revolvin g mechanism: designed with 360 degree-revolving type pedestal base: glass filled nylon minimum thicknes s (in mm) of ms plate joining the backrest with seat of the chair: 2 millimeter make: godrej interio, pepperfr y and nilkamal seat material: pu foam density of pu used in seat (kg per cubic meter): >4030400450550 backrest upholstery material: mesh fabrics armrest type and arm movement: fixed warranty p eriod in number of years 2 year [ warranty period: 24 months after the date of delivery ] ] => limited