Lox saddle is a craftable item.
Lox saddle grants the ability to ride tamed Lox. To attach, simply put the saddle on the hotbar then activate while aimed at a tamed Lox. The saddle can then be "teleported" to, like a boat rudder by pressing the "Use"-key (E by default). The saddle can be removed from the Lox by pressing Left-Shift + E.