They are a pair of silver slippers that allow anyone to travel to other realms when they click their heels three times whilst wearing the slippers. According to Baelfire, there are also ruby slippers that are used for the same purpose.
- Zelena Mills — travels from Oz to the Enchanted Forest, then back to Oz
- Dorothy Gale — travels from Oz to Kansas, then back to Oz with Toto
- Ruby Lucas — travels from the Underworld to Oz with Snow White
- Snow White — travels from Oz to Storybrooke
When Zelena desires to go to the Enchanted Forest, the Wizard of Oz gives her silver slippers which can be used to travel to different realms. Zelena travels to the Enchanted Forest, where she meets Rumplestiltskin. She eventually tells Rumplestiltskin about the magical properties of the slippers, and Rumplestiltskin tries to obtain them, but Zelena travels back to Oz. Zelena eventually gives the silver slippers to a young girl named Dorothy Gale, while disguised as the Wizard, so that a prophecy won't occur when Dorothy is destined to defeat Zelena and take her place as Witch of the West.
- S3, E16: "It's Not Easy Being Green" (flashback)
- S3, E20: "Kansas" (flashback)
- S5, E16: "Our Decay" (flashback)
- S5, E18: "Ruby Slippers"