31mm model suitable for fishing reel:21 FOR for ZILLION SV for TW G for STEEZ AtW/CTSV FOR 21SteezHLC. 33.3mm model suitable for fishing reel:for STEEZ AIR 9 ratio. 34mmmodel suitable for fishing reel:21 FOR DC 5.6ratio/21 FOR DC 7.8ratio forXG ,21CQ101.1005.6 ratio.
