Mecor Massage Office Chair Race Car Style PU Leather Computer Chair Ergonomic (Black&White) 360 DEGREE SWIVEL-360 Degree swivel with 5 durable casters,gas lift height and tilt function adjustment,the button on the right side to adjust the back position HEATING AND MASSAGE-Heating functions and 6 vibration massage options for upper back, lower back and seat to promote blood circulation,stimulate muscle movement and relieve tension REMOTE CONTROL-5 massage modes for selection,change massage setting conveniently.Just plug the controller cord into an electrical outlet. No batteries required MATERIAL AND RACE CAR STYLE-Made of PU/PVC leather, soft and durable eco-friendly ample padding,extra thick armrest designed to ease your elbows pain,best choice for extended periods of gaming or working at home and the office PRODUCT SIZE-24''L x 30''W x 45''-49'' H,Seat Size:21.3"L x 19.5"W,The height of the arms:8", Weight Capacity:260 lbs,This massage office chair has a slight massage function,if you want to buy a office chair with special massage ,please look for B01GPP4Y6E Made of PU/PVC Leather, soft and durable leather and padded armrests,providing you maximum comfort. Weight capacity: 300 lbs. 6 vibration massage options for upper back, lower back and seat. Massage function is powered through a power cord. Heating function for upper back, lower back and seat. Reclining-Racing style high back office chair with lumbar support to ensure you can spend hours in . Multi-direction wheel Adjustable seat height &amp; position Notice:The button on the right side to adjust the back position. Including a remote control to adjust massage and heat settings. The heating function can control alone . Overall:24&#034;Lx30&#034;Wx45.3&#034;-49&#034;H Seat measures 21.3&#034;W x 19.5&#034;D Backrest measures 21.3&#034;W x 30.7&#034;H Lowest Seat height: 18.5&#034; Space between arms: 21.3&#034;W