This is our ergonomic massage gaming chair with retractable footrest which will provide you with superior comfort. Made of premium quality materials, this chair is sturdy and durable. The safety standard air spring and wide base provide excellent stability. Compared with the traditional electric racing chairs, our upgraded product is equipped with a USB electric massage lumbar support for better user experience. Thick soft cushion and high backrest can effectively relieve fatigue. The adjustable backrest angle of 90-155 degrees can meet the different needs of your work, play and rest. In addition, the universal wheels at the bottom can be moved quickly for high efficiency. Don't hesitate to buy it! Feature High quality materials and metal frame ensure durability and sturdiness Robust chassis with excellent load bearing capacity to withstand 330 lbs Comes with a removable headrest, adjustable lumbar pillow and retractable footrest The lumbar pillow is designed with USB massage function to relieve waist pain Soft PU leather and high density sponge provide a comfortable sitting feeling With a 90~155degrees tilt function, you can play video games or rest at any desired angle Ergonomically designed backrest perfectly fits the human body curve 360-degree swivel wheels ensure smooth-rolling mobility for multitasking convenience Specification Color: GrayBlack Material: PU + Iron + Sponge Overall Dimension: 27'' X 28.5'' X (49.5 - 53.5)'' (LXWXH) Adjustable Angle of Backrest: 90degrees- 155degrees Seat Height: 19'' - 23'' Armrest Height: 11'' – 14'' Backrest Size: 21.5'' – 33.5'' (WXH) Seating Area Size: 21.5'' – 20.5'' (WXD) Wheel Diameter: D2.5'' Net Weight: 44 lbs Weight Capacity: About 330 lbs Package includes: 1x Gaming Chair 1x Instruction