The JBL Floaty L Blade is a floating algae magnet with blade for thick glass panes up to 15 mm thickness. Special features: Blade insert with a blunt blade with no risk of cutting (removes even the most stubborn of films). Extremely light material with a strong magnetic field. Optimised for glass panes of 8 - 15 mm thickness. Replaceable blade insert.Do you have questions about this article ?