PERFECTLY COMPATIBLE WITH DAIWA ELECTRIC REELS: Compatible with Tanacom 750 1000, Leobritz 200J 300J S400 500J S500J S500. SPECIFICALLY DESIGNED FOR SHIMANO ELECTRIC REELS: Compatible with 17 Plays 800 1000 4000, 16 Plays 400 3000, 13 Plays 3000, 18 BeastMaster 2000, 16 BeastMaster 3000, 14 BeastMaster 6000 9000, 13 BeastMaster 3000, 15 PLEMIO 3000.