This is an remix of a pair of handcuffs, desingned by sthone. (https://www.thingiverse.com/thing:2487050)
For the finished handcuffs you'll need 10 'Handcuff_Pin.STL' to hold everything together. A small hammer or vice can be helpful.
“Handcuffs_Spring” and “Handcuffs_Locking_Bar_Pawl” are printed twice, because they don't need to be mirrored. For the “Handcuffs_Spring” petg would be a better choice than pla.
And 2 Pins of 1.75 Filament are needed to secure the locking-bar (red on 3nd the pic).
The key is a normal handcuff key and not included in this model. You can use this key: https://www.printables.com/de/model/351099-toy-handcuffs-key
The author remixed this model.