The Beaphar Soft Cat Flea Collar contains the natural plant extracts Margosa and Lavandin Oil to repel fleas for up to 8 weeks. The collar requires 5-7 days to reach optimal effect. This comfortable fabric collar has been fitted with an elastic safety link. The safety link is designed to stretch if your cat gets caught while out and about, enabling them to slip their head out. The collar can also be adjusted to fit any cat. The Beaphar Soft Cat Flea Collar comes in a stylish glitter finish and with an optional silver bell. Suitable for cats and kittens from 12 weeks of age. 95% of a flea problem is in the home in the form of flea eggs and other developing stages. For best results it is recommended to use a household insecticide to treat your home, such as Beaphar FLEAtec Household Flea Spray.