DIVE FLAG: Reinforced internationally recognized dive flag with greater strength to prevent the flag from folding or flopping in the wind improving visibility on the surface
PRINTED signals: Personal safety signals, "DIVER BELOW" indicates diver below. The signals allows people to find your location easily
MATERIAL: The PVC used for this buoy is thick and environmental-friendly, with highly resistant to stress from sea activities
QUICK INFLATE OR DEFLATE: Fast blowing mouth, 5-10 breath can be full, easy deflates after use for quick storage
SAND HOLE: The sand hole at the bottom, can be filled with sand to fix the sphere and keep the ball upright