The side edges 2 slope inward from {TAIL ~ the top} of the body board T to {HEAD ~ the bottom surface B} 
The side edges 2 slope inward from { TAIL ~ the top } of the body board T to { HEAD ~ the bottom surface B }
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD