Product Description: Item Type:Dog Collar Material:Plastic Cement Pattern:Solid Size:S/M Size of S(neck):29 cm/11.42" Size of M(neck):42 cm/16.54" Target Audience:Dogs Dog Size:Universal Gender:Unisex Season:All Seasons Features: Features: This product is made from broad-spectrum insecticide formula. It can effectively remove parasites such as fleas and lice, and is a professional product for pets to eliminate pests and fleas. It is suitable for dogs aged 90 days or older. Usage method： 1. According to the size of the neck of the cat / dog, the circle is tied to the neck. 2. Take the collar before the bath and then put it on after the dog fur is dry. 3. When using this product, dogs should be avoided to lick the product.When you have many dogs,you should not allow they to lick each other. 4. The product can be effectively worn for 60 days after opening, and the shelf life of the product is guaranteed for two years,if it is not open. Package Include: 1 x Pet Collar for Dogs & Cats to Repellent Flea & Mosquito Notes: 1. Please allow 1-3 cm difference due to manual measurement and 3-5 g for the difference between different colors. 2. Due to the screen difference, the color may be a little difference from what you expect, please allow it.