Specifications:
■ Compatible size: Chair backrest compatible size: Width 11.8 - 19.7 inches (300 - 500 mm), Thickness 3.9 inches (100 mm), Height 9.8 inches (250 mm) or more
■ Dimensions (W x D x H): Approx. 16.3 x 6.9 x 15.0 inches (415 x 175 x
■ Weight: Approx. 2.9 lbs (1.35 kg)
■ Color: Gray
■ Material: PP, ABS

【Description】
■ This lumbar support is attached to the chair back to improve your posture while working at your desk.
■ Ergonomic back support reduces pressure on your spine.
■ Double torsion spring design disperses the pressure on your back.
■ 5 adjustable levels, so you can adjust it to your preferred height according to your body.
■ The back support part is designed to be breathable to prevent slipping.
■ Easy to install, just fix it to the back of the chair with elastic band.

From the Manufacturer

Lumbar support for improved desk posture

Ergonomic lumbar support that attaches to the chair back to improve your desk posture

Ergonomic back support Ergonomic back support reduces spine pressure	5 adjustable levels. 5 adjustable levels, so you can adjust the height to suit your body.	Double Torsion Spring Design Double torsion spring design disperses back pressure

Breathable design that resists dragging. The back support is designed to be vented to prevent slipping.	Easy to install Easy to install, just fasten to the chair back with elastic band.

Specifications

Compatible Sizes	Compatible with chair backrest mount: Width 11.8 - 19.7 inches (300 - 500 mm), Thickness 3.9 inches (100 mm), Height 9.8 inches (250 mm)
Dimensions	Approx. Width 16.3 x Depth 6.9 x Height 15.2 inches (415 x 175
Weight:	Approx. 2.9 lbs (1.35 kg).
Color	grey
Material:	PP, ABS