Our stern flags are made from 3-inch wide, highly UV-resistant, vinyl-coated polyester with a 10-inch long attachment loop made from 3/4-inch wide nylon webbing. They can be attached to a rudder, stern handle, carrying thwart, pad-eye, or anything else that the attachment loop will slip through. 

Length

Red vinyl-coated polyester: 3x30 inches
Length of attachment loop: 10-inch 
Total length: 40 inches