REC "NBS SERIES" NICKEL-SILVER UPLOCKING REELSEATS - This is a lightweight seat featuring milled slide bands and hood with a double knurled locking nut. Recommended for 2-7 wt blanks. Length 3.45", Diameter .655". Bores are .420. NATURAL WOOD INSERTS: (1)Cocobolo, (2)Curly-Koa, (3)Bacote, STABILIZED WOOD INSERTS (4)Black-Ash, (5)Maple-Burl, (6)Box-Elder, (7)Buckeye-Burl