Newly developed and patented seat alternative or standing aid for moving sitting, trains the back and has a preventive effect against back problems. Widely used in office, workshop, kitchen, household etc. The stool ensures movement in the sitting as well as in the standing workplace. Continuous seat height adjustment (release lever under the seat) with black lacquered gas spring with "clean effect", which cleans itself with a scraper mechanism and is therefore oil film free. The absolute novelty of this product is the patented sole. It is moulded from thermoplastic plastics (TPU) and divided into individual segments (thermoplastic polyurethane). Like a high-tech sports shoe, the sole adapts perfectly to the surface and the inclination. Thus, the stool develops a unique movement behaviour, is extremely dynamic, but still very stable and stable. Base frame in black plastic, combined with coloured sole (black) and plastic appliqués in black. Skateboard seat shape. Black patterned fabric cover (100% polyester). Seat height: approx. 57 - 77 cm; seat width/depth: 45 / 20 cm; base diameter 35 cm. Load capacity up to 110 kg. Maximum user size approx. 1.92 m. Recommended service life/day: max. 4 hours per day. This model carries that of the Intertek in Fürth and meets all safety-relevant requirements. Made in Germany. Note: Product comes unassembled.