Anchor Day Signal Ball – Black (30cm & 35cm)

This anchor day signal ball is an essential safety accessory for any boat or yacht, clearly indicating your vessel’s status when at anchor. Constructed from durable, weather-resistant black fabric stretched over a collapsible frame, the ball is lightweight, easily stowable, and quick to deploy. By day, international COLREGs require vessels at anchor to display a black round shape in the forepart – hoisting this signal ball to the highest point (usually the foremast or bow area) fulfills that requirement and alerts other mariners that your boat is anchored and not under power. The anchor ball comes in two diameter options: a 30 cm ball ideal for smaller yachts and recreational boats, and a larger 35 cm ball for improved visibility or for use on bigger vessels. Both sizes feature a high-contrast matte black finish that stands out against the sky for maximum day visibility. The design is collapsible for convenient storage and can be quickly opened into a rigid spherical shape when needed. It attaches easily to a halyard or flag mast with integrated hooks or loops, allowing you to raise or lower the day shape in seconds. In addition to signaling anchoring, two such balls displayed vertically (one above the other) can also denote a vessel Not Under Command (unable to maneuver), as per navigation rules. Rugged and corrosion-proof, this anchor signal ball withstands marine environments (sun, wind, and saltwater) without fading or degrading. It’s a simple yet critical device to enhance your daytime visibility and safety on the water, preventing collisions by communicating your status to nearby ships. Ensure you have the appropriate size on board so you can anchor with confidence knowing you are compliant with maritime regulations and keeping your vessel safe.