sealer

long time lurker - first time poster. i have an older mitchell spidercast retractable butt baitcasting rod. the specs are as follows: model # SC76FPT 7 1/2 ' flipping / pitching lure wt. 1/4 - 2 oz. line wt. mono - 15 -30 lb. superline - 10/50 lb. it says spectra composite. is that graphite or glass, both / neither ? it's not rated, would it be a medium heavy or a heavy ? i am thinking about selling it and was wondering if it had any value or is it just another fishing rod ? thanks,dennis