finished string

face string, finish string

face string
An outer string, usually of better material or finish than the roughstring which it covers; may be part of the actual construction or applied to the face of the supporting member.
References in periodicals archive ?
Top competitive archers recommend a finished string with a served center that is just slightly larger than the nock throat diameter.
Gail showed his finished strings to the giant longbow and recurve companies of the day: Bear, Wing, Ben Pearson, Howatt, Hoyt, and others.