Feature 1Adopts ergonomic design, this lumbar support can help you correct your sitting posture, effectively support your lumbar to relieve the discomfort of driving and sitting for a long time. 2This lumbar support for chair adopts upgraded adjustable design with highelastic belts to adjust the cushion height, which can fit your lumbar better. 3With the upgraded doublelayer mesh design, the lightweight breathable fabric of this mesh back support cushion effectively keep your back and waist cool and dry. 4With the adjustable install belt, this chair back support cushion is very easy to install. 5Suitable for almost all kinds of seats, including car, home, school, office seats, etc.Specifications:Size: 40*39cmMaterial: Ice silkPackage included:1*Lumbar SupportNotes:1. Manual measuring, please allow 1 ~ 3mm error,thank you.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture..wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1*Lumbar Support