A flea collar is a type of pet accessory designed to help control and prevent flea infestations on animals, particularly dogs and cats. These collars are typically made from flexible materials and contain insecticides or natural repellents that are gradually released to kill or repel fleas. They are worn around the pet's neck and can provide protection for several months, depending on the product. Flea collars are easy to use and can be a convenient option for pet owners. However, it's important to choose a collar that is appropriate for the specific type of pet and to follow the manufacturer's instructions for safe use. Regular checks for fleas and other parasites are also recommended to ensure your pet's health.