300-mm Ø black signal ball

This 300-mm diameter black polycarbonate signal ball with an anti-reflective finish is designed for daytime visibility from 1 mile to unlimited distance offshore and is mandatory equipment under DM No. 133 (21/09/2024). It is hoisted vertically to signal that a vessel is at mooring, at anchor, not under command, or in a dangerous situation such as being beached or grounded.