Thumbcuffs
Categories: Physical restraint
Image:Daumenschellen (Thumbcuffs Bondage) Model Ina.jpg
A woman wearing both thumbcuffs and handcuffs.
Thumbcuffs are a metal restraining device that lock thumbs in close proximity.
Rarely used due to an increased possibility of injury, most commonly tight cuffs blocking blood circulation, handcuffs are used instead.
Thumbcuffs may also be used as improvised toecuffs by locking the large toes in close proximity.
The standard universal handcuff key does not generally work with thumbcuffs, as most thumbcuffs use a smaller key.
Thumbcuffs with double locks have a lockspring which when engaged, usually using the top of the key, stops the thumbcuff from ratcheting tighter and prevents the subject from tightening them, possibly causing injury. Double locks also make picking the locks more difficult.
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