Best suited for boats with a beam up to 4.5 m. Aluminum shaft Ø 28 mm has an optimal shape for extended reach and can be used with 2-4 sections. Use your fender or 1-2 empty cans as flotation. The recommended maximal flotation is ~ 12 liters. Use without flotation for vertical surfaces such as the keel and stern. A 400 mm brush for algae and a 250 mm scraper for barnacles are included.