You master fighting with two finesse weapons, gaining the following benefits:
You gain a +1 bonus to AC while you are wielding a separate finesse weapon in each hand.
When duel Wielding you may make a second attack with you offhand weapon at part of your attack action, instead of a bonus action.
You can draw or stow two one-handed finesse weapons when you would normally be able to draw or stow only one.
You can add your proficiency bonus to both attacks