Specifications: Color: Grey / Black Materials: Birch, poplar wood, fabric, sponge Product dimensions: 28" x 20" x 22" (L x W x H) Net weight: 13lbs Maximum weight: 330lbs Description: This ergonomic kneeling chair promotes proper sitting posture, aligning your back, shoulders, and neck to reduce pain and fatigue caused by prolonged sitting. Designed with a flexible rocking base, it allows for smooth movement to stretch and improve comfort while sitting. Built with durable birch and poplar wood, the chair offers a sturdy, long-lasting structure, while the smooth bottom ensures no floor damage. The thick, high-resilience sponge cushion provides a comfortable experience for your knees and calves, and the breathable fabric upholstery enhances overall comfort. Perfect for both home and office use, it adds an aesthetic touch and is easy to assemble with included instructions. Key Features: ● Correct Your Sitting Posture: This kneeling chair is specially designed to keep you in a correct and upright sitting position. When sitting on this chair, your back, shoulders and neck align naturally, which facilitates to relieve the pain and fatigue that caused by your sedentary behavior. ● Flexible Rocking Base: This rocking chair features a curve structure with exquisite workmanship, enabling to swing back and forth like a tumbler. In this way, this ergonomic kneeling chair prevents you from being stuck in one position, making it ultra-easy for you to stretch and exercise when sitting. ● Solid Wood Structure: Thanks to solid birch and poplar wood, the rocker posture stool is firmly connected to withstand the test of time. And the bottom smooth surface will not scratch your floor. ● Comfortable Elastic Cushion: Equipped with thick high-resilience sponge, this position seat provides friendly using experience to the calves and knees. ● Wide Application and Quick Assembly: Sitting on this kneeling chair, you will naturally keep in a right sitting posture.