Jim Buoy/Cal-June Green Channel Marker Buoy #427. The shell is made of high density polyethylene. Internal foam is 2-3 lb density polyurethane foamed to waterline. The internal ballast is reinforced concrete. Has 1/2" galvanized steel eyebolt on bottom for attachment. Note: chain is required to float upright.

Dimensions:
Overall height: 45"
Can diameter: 10"
Base diameter: 19"
Height above waterline (foam line): 40"
Weight is 38 lbs.