The Leitz Ergo Active Sit Stand Stool allows the flexibility to move between sitting and standing while you work, encouraging muscle movement, maintaining proper posture, and increasing energy levels. 2 in 1 stool can be adjusted to the perfect sitting height similar to an office chair but also to a perfect standing support height with a significant higher range than other standard stools. Features a rounded base to encourage active movement by swiveling and rocking while you work to strengthen your back. The height can be easily adjusted between 18" - 31" (46 -79 cm) and the standing stool will remain strong and stable at any height. Comfortable and practical, this ergonomic stool has a breathable, 3D air mesh-covered foam seat and a non-slip base which will not damage your floor. With its minimalist design and matte finish colors, this stylish standing desk stool will promote health and wellbeing by effortlessly creating the perfect active working set-up. Limited warranty. Plastic free packaging. Tested and recommended by the German IGR Institute for Health and Ergonomics, according to DIN 26800 EN ISO 15537 - also TÜV and GS certified. Combine with other Leitz Ergo products for an inviting and flexible workspace that keeps you moving all day.