The Switch Hook is an item currently found exclusively in Oracle of Ages. It has a handle with an extending chain featuring a hook at the end and is used for latching onto objects to pull Link toward them.
 The Legend of Zelda: Oracle of Ages
In Oracle of Ages, the Switch Hook is found in the Skull Dungeon of Symmetry City.It allows Link to switch places with certain objects such as pots and rocks, as well as enemies. Later in the game Link can acquire the Long Hook, featuring a longer chain and faster fire rate.