These gloves double the experience gained from catching swordfish when equipped (total of 200XP). These gloves will disintegrate after 1000 uses.
Swordfish gloves do not have any effect on the rate of catching swordfish or Big swordfish (for player-owned houses). They will stack the experience gained from sacred clay harpoon and volatile clay harpoons. The total XP gained from using both the scared clay harpoon and the swordfish gloves is 400XP per swordfish.