Excenter length adjustment, ergonomic soft hand grips, patented system for easy fixing of Ocean and Smart cleaning accessories, protection against injuries, 1,1 mm wall thickness for long life cycle 2-part: 1.8–3.6 m; 2.4–4.8 m; 3.75–7.5 m; 3-part: 1.2–3.6 m; 1.6–4.8 m