The Leitz Ergo Active Sitting Stool comes with a unique Dual Density Foam (DDF) comfort seat featuring a firm ergonomic support core. Similar to a saddle stool, its triangular shape distributes weight evenly across the pelvis and is surrounded by soft foam cushioning, reducing pressure on the thighs and legs. The 9 cm thick seat offers comfortable sitting or leaning, encouraging users to sit more upright for an ultra-comfortable seating experience. Developed with the Institute for Health and Ergonomics (IGR) , this adjustable height ergonomic desk stool is designed to keep users active while sitting at their desk at home or at work. The rounded wobble base of the stool chair encourages active movement by swivelling and rocking, strengthening the back and core to prevent aches and pains. The stool chair has a smooth and easy 17 cm height adjustment range (47 - 64 cm) and a seat cover made from 100% recycled material. Its non-slip rubber base prevents slipping and protects floors. With