The old barn still stored several leather horse-collars that had been used for plowing.

The museum showcased antique horse collars from the 19th century alongside old plows.

The shelter bought fifty flea collars to protect the rescued kittens.

During the obedience trial, the judge warned several handlers about the use of electronic collars.

I refuse to use an e-collar on my dog because I prefer positive reinforcement.

The veterinarian explained the risks of using a shock collar on anxious dogs during the consultation.

The veterinarian warned that using an electronic collar can cause stress and should be considered only as a last resort.

Many professional trainers recommend e-collars when teaching reliable off-leash recall.

I put a flea collar on my cat before the summer flea season started to prevent her from scratching.

Many animal welfare groups oppose the use of shock collars, arguing they cause unnecessary pain and fear in dogs.