Avail shallow spool for old ABU 5500C reels in 80's from Mamiya in Japan, with sharp edge design side plates and fixed spool shaft on spool. Also fits to 80's 5001C with flat side plates. Does not fit to 5500C sold in 70's. Difference is at the genuine spool, and 70's spool has silver plates just under brake holder pin, but 80's doesn't have the silver plates. 0.285mm-70m