shackles

1. (usually in the plural) A restraint fit over a human or animal appendage, such as a wrist, ankle or finger; normally used in pairs joined by a chain.

   The prisoner lay in shackles in his gloomy cell.

2. A U-shaped piece of metal secured with a pin or bolt across the opening, or a hinged metal loop secured with a quick-release locking pin mechanism.
3. (usually in the plural) A restraint on one's action, activity, or progress.
4. A fetter-like band worn as an ornament.
5. A link for connecting railroad cars; a drawlink or draglink.
6. A length of cable or chain equal to 12 1/2 fathoms or 75 feet, or later to 15 fathoms.
7. Stubble.

1. To restrain using shackles; to place in shackles.
2. (by extension) To render immobile or incapable; to inhibit the progress or abilities of.

   This law would effectively shackle its opposition.

verb

To shake, rattle.