XS Scuba Surface Marker Buoy HUGE, 7' (2.13 meters) Long x 22" (60 cm) Circumference (6'/1.83 meters out of the water) Mil-Spec, Urethane-Backed, Nylon Material SOLAS Reflective Tape, Both Sides for Maximum Visibility Elastic Loop at Top for Chemical Light Attachment XS Scuba Surface Marker Buoy (SMB)