VIVOHOME Kneeling Chair adopts ergonomic design to correct sitting posture. This chair can keep your back upright, distribute the weight evenly on the hips and legs, reduce the pressure on the spine, and reduce the discomfort of the back and cervical spine. The thickened foam base and heat bending base ensure comfort and stability at the same time. Recommended for people who need to sit for a long time. Features: <br>-Reasonable Design - The space between the seat cushion and the kneeling cushion is reasonable, so you won't feel squeezed when sitting. <br>-Easy to Install - This kneeling chair has a pre-perforated design and is easy to assemble. It takes approximately 10 minutes to complete the installation. <br>-Spare Screws - To avoid the chair being unstable due to the loss of screws later, we put spare screws in the package. <br>-High Elastic Sponge - The sponge of this cushion is a highly elastic sponge, which will not collapse even after sitting for a long time. <br>-Recommendation - We recommend standing up and walking around every four hours when using this chair. Product Specification: <br>-Material: Poplar + High-Density Sponge <br>-Color: Grey Cushion + Wood Base <br>-Product Dimensions: 21.3*31.5*21.3 in <br>-Package Dimensions: 30.3*19.3*5.5 in <br>-Product Weight: 16.8 lbs <br>-Package Weight: 18.7 lbs <br>-Weight Capacity: 330lbs Package Includes： <br>-1 x Kneeling Chair <br>-1 x Instruction <br>-1 x A bag of screws Product Warranty: <br>-We assure that the item you received is 100% safe and sound. For any defective item, please contact our customer service for a satisfying solution.