Catty Man Cat Flea Collar + Mosquito Repellent for Cats New, Unopened Color: Pink Powerful barrier with dual insecticide ingredients! Product Description (from the website) Contains the effective ingredients phenothrin and IGR (pyriproxyfen), which are gentle on pets and quickly effective against fleas. Fleas can be eliminated simply by putting it around the neck. ① Cute pearl-colored mosquito repellent and flea collar. ② Effective for about 6 months! Contains the medicinal ingredients phenothrin and pyriproxyfen. ③ Kills fleas and disrupts their life cycle. Also effective as a mosquito repellent. ④ Effects appear in about 1 week and are effective for 6 months. ⑤ Fits necks up to 28cm. Quasi-drug for animals. Includes a breakaway slit to prevent suffocation in case of a load. ⑥ Includes a replacement date sticker (photo ⑩) Ingredients: Body: PVC Main Ingredients: Phenothrin, Pyriproxyfen Body Size: 8.5 x 2.8 x 16cm Weight (including packaging): 30g Pet Type: Cats