To remove collar stains, you can try using a mixture of equal parts vinegar and water to pre-treat the stains before washing. Alternatively, you can use a pre-treatment stain remover or a paste made of baking soda and water. Let the solution sit on the stains for a few minutes before laundering as usual. For tougher stains, you may need to repeat the process or consider taking the garment to a professional cleaner. **

A Mandarin collar typically has one collar button at the center front. This button is used to fasten the collar and create the characteristic stand-up collar look. The button is usually placed at the top of the collar, near the neckline, and is the only button on the collar. **

The collar size for a shirt or blouse is typically determined by measuring the circumference of the neck. To find the correct collar size, use a measuring tape to measure around the base of the neck where the collar would sit. It's important to measure accurately and add a little extra room for comfort. Once you have the measurement, refer to a sizing chart to find the corresponding collar size for the shirt or blouse. **

The color of the collar can depend on personal preference, the color of the pet's fur, and the owner's style. Some popular collar colors include black, brown, blue, red, and pink. It's important to choose a color that complements the pet's fur and is easily visible. Additionally, reflective or light-up collars can be helpful for pets that are often walked at night. **

The choice between a retriever collar and a leather collar depends on your dog's specific needs and your personal preferences. Retriever collars are typically made of durable materials and are designed for dogs that are active and may pull on their leash. They are also adjustable and can provide a secure fit. On the other hand, leather collars are stylish, comfortable, and can be a good choice for dogs with sensitive skin. Ultimately, consider your dog's activity level, comfort, and any skin sensitivities when making your decision. **

The cat likely removes the Elizabethan collar because it is uncomfortable and restricts its movement. Cats are known for their dislike of wearing any type of collar or accessory, and the Elizabethan collar can be particularly bothersome due to its size and shape. Additionally, the cat may be trying to groom itself or scratch an itch, which is difficult to do with the collar on. **

To remove rust from the dog's collar, you can try using a mixture of white vinegar and baking soda. First, soak the collar in white vinegar for a few hours to help loosen the rust. Then, make a paste with baking soda and water and gently scrub the rusted areas with a toothbrush. Rinse the collar thoroughly and let it dry completely before putting it back on your dog. If the rust is stubborn, you can also try using a commercial rust remover specifically designed for pet accessories. **

The grammatically correct option is "electric collar." In this case, "electric" is an adjective describing the type of collar, while "collar" is the noun being modified. On the other hand, "air-water collar" does not make sense as "air-water" does not clearly describe the type of collar. **