Ko-lar
The Gorean word for collar.
"Ko-lar," she said, indicating her collar.
"It is the same word in English," I cried.

Collar
A steel band, normally locked upon the slave's throat. Slavegirls are required to repeat the purposes of a collar on demand. They are: (1) to visibly designate the wearer as a slave,
(2) to impress her slavery upon her, (3) it identifies her master, and (4) it provides ease of leashing.

Types of Collars
Capture collar- The capture Collar is a loop of chain controlled by two wooden handles so that it is easy to block off the slave's air supply as a measure of control.
Coffle collar- A slave collar with a ring upon it to thread chain through, the chain is either a permanent attachment or removable depending on the amount of slaves in the coffle.
Cord collar- A light cord tied about the slave's throat with a small disk hanging from it which identifies the name of the Owner. This type of collar is used in the Delta where metal can only be traded for.
Dance collar- A collar to which light-weight chain has been attached in order to set off the dancer; a common type consists of a large oval of chain , to which wrist cuffs are attached; once the two sides of the oval have been attached to a ring on the collar; there are variations depending on the region.
Kur collar- A high, locking, leather collar which is used to identify Kur slaves
Lock collar- A slave collar normally for a female slave, which locks in the back. The key would be kept by her Owner. Most locks are six pin or six disk locks, one pin or disk for each letter of the word kajira.
Message collar- A high leather collar which a contains a message sewn within it. Normally the recipient would also keep the slave as a gift.
Northern collar- The Northern collar is flat black metal, literally riveted on with a hammer, it is normally unmarked and is used in Torvaldsland and surrounding areas.
Plank collar- A plank collar is used on slave benches. It is a heavy wooden plank with five semicircular openings, when the plank is lifted it provides holding collars for five slaves. The plank is then chained down.
Plate collar- A plate collar is used most often on male slaves or untrained female slaves. It is hammered onto the throat and only a metal worker can remove it.
Turian collar- The Turian collar, unlike most collars which fit closely to the girl's skin, is a loose round ring, so loose that the girl can turn within it. Though it is harder to engrave, it is very popular in some areas.
Shipping collar- A shipping collar is a temporary collar used to identify the slave as part of the cargo of a particular ship.
Collar Sleeve- A sleeve made out of cloth of some type which goes around the collar and normally would match the outfit the slave is wearing. Used only in some cities.
Errand Capsule- An errand capsule is a leather cylinder attached to a slave's neck by a string over the collar, it is used for carrying notes and messages usually.
Identificatory Anklet- This type of anklet is used for slaves stolen from Earth. It is removed and replaced with a collar upon her delivery. The anklet has the girl's identification number engraved upon it.