The cuffs were stolen by Caitlin Snow after she and her mother couldn't find any way to reverse her developing powers. Cisco suspected H.R. had stolen them, but Caitlin later confessed and revealed her powers to Cisco. Caitlin kept them until the meta-human Shade attacked Hofherr Park, so she tossed them to The Flash, who used them to capture Shade.
Caitlin continued to use them until Christmas of 2016 in the fears that her alter ego Killer Frost would be released. However, she was later given a pendant that acted as a more practical dampening device.
A pendant was made for Caitlin by Julian Albert and Cisco Ramon to act as a power dampener as well as to collect solar energy to charge it on the go so that she wouldn't need to sit with the cuffs plugged in to charge in order to ensure that they continue to work properly.
- Abra Kadabra
- Mina Chaytan/Black Bison
- Adam Fells/Geomancer
- Sam Scudder/Mirror Master
- Caitlin Snow/Killer Frost
- Clive Yorkin
- Leslie Willis/Livewire
- Eobard Thawne used similar cuffs to hold Barry Allen of 2016 to his wheelchair during Barry's trip to the past.