on the smartphone if the Internet connection is available. Some collars combine GPS with radio signals to transmit information to the intended receiver. Most integrate GPS with communications networks (LBS) by sending information to your computer or mobile device. Horse collars Full collar/Horse collar Used for horses or other draught animals, this consists of a robustly constructed leather device stuffed with straw or other material that sits comfortably on the animal's shoulders around its lower neck, supporting a set of hames that transfer the draught forces from the animal to the traces. Breast collar/breastplate The breast collar has two forms: One is a simpler type of draught collar for lighter loads, consisting of a padded strap around the chest of the animal. The other is similar, but is attached to a saddle and used when riding a horse to prevent the saddle from sliding back. Horse tie-up collar A collar designed to teach horses to tie up and to tie stallions at public events. It is constructed from double-stitched wide leather (sometimes fleece lined), with heavy duty dees sewn into each end. The collar is placed on a horse just behind the poll strap of a headcollar (headstall) which is used in conjunction, and a strong rope passes through the headcollar to secure the two dees so that the horse's wind is not impaired in any way. This manner of application will reduce the likelihood of the collar slipping and injuring or choking the horse. Sometimes used for tethering horses, they are expensive and are potentially dangerous if the horse should become entangled in the tether or frightened, etc. Mare collar A simple buckled neck strap that has a plastic ID tag attached. Headcollar or halter Not strictly a collar, this consists of straps around the head for tethering, tying or leading horses or other livestock. Cribbing or wind-sucking collar The "Nutcracker" collar is an adjustable strap with a lightweight aluminium 'nutcracker'. It is placed around a horse's neck to help prevent windsucking by stopping the flexing of the neck muscles whenever it tries to suck in air. Cornell collar A device developed for use on racehorses to prevent dorsal displacement of the soft palate during racing. Neck cradle Used on horses to prevent them chewing at injuries and dressings. Neck strap A simple narrow leather strap buckled around a horse's neck to give security to jockeys and other riders.