Puppy restraints
From wipipedia.org

Puppy restraints are a special type of bondage, used in Dog play. They are designed to prevent the wearer/dog from standing up or doing anything considered human.
The restraints consists of four cuffs (two for the wrists, two for the ankles), which are attached to a cock ring and sometimes a ball strap on short lengths of chain. These short lengths of chain pulling on the attached cock ring and ball strap make it very painful, even impossible for the wearer to stand up, walk, or reach high places. However, it is possible for the wearer to crawl, sit, or beg.