JD Jingzao Ergonomic Lumbar Support Upgraded Office Chair Lumbar Cushion Car Waist Pillow Student Backrest Cushion

Ergonomic wrap-around lumbar support with patented human engineering design

Dynamic adaptive pressure relief with T-elastic support

Height adjustable support board with stepless adjustment via hand screw (up to 9cm height adjustment)

Inflatable airbag system with manual inflation and deflation buttons for customized lumbar support

360° breathable design with 166 dual-direction ventilation holes and 3D cooling mesh fabric for long-term comfort

Detachable airbag with envelope style for easy maintenance

Adjustable buckle strap for secure attachment to various chair types

Office workers, drivers, middle-aged and elderly users, gamers, long-time sitters

Compatible with office chairs, ergonomic chairs, gaming chairs, car seats

Not suitable for chairs with convex support surfaces or hollow backrests

1. Inflate or deflate the airbag to adjust lumbar support pressure by squeezing the air pump ball and pressing the release button.

2. Adjust the height of the lumbar support by rotating the hand screw to find the most comfortable position.

3. Attach the cushion securely using the adjustable strap.

Ergonomic patent certified

Top 1 sales ranking in JD.com lumbar support category for two consecutive years

Recognized for professional-grade lumbar protection and quality assurance

Breathable mesh fabric prevents sweating during prolonged use

High-quality manufacturing with over 100,000 trusted users

Ergonomic lumbar support cushion with adjustable airbag and strap

User manual with inflation, deflation, and height adjustment steps