Product name:Pet flea collar Product usage:General for dogs and cats Size: 39cm (cat models); 44cm (dog models) Material: environmentally friendly PE rubber Suitable: for all seasons Product features: 1. Portable insect protection. 2. Easy to wear. 3. Mild fragrance. 4. No harmful ingredients. Symptoms of flea infection in pets: 1. Repeated biting makes the pet restless day and night. 2. It can cause itching/scratching/resulting in dermatitis, ulceration and infection. 3. Flea's feces can cause pet skin allergies and hair loss. 4. Long-term blood sucking can make pets chronic anemia and hinder growth and development. How to wear 1. Pull off the buckle. 2. Pass through the buckle. 3. Pass through the fixing buckle. 4. Fasten the buckle (the excess part can be cut off). Please notes: 1.The whole is waterproof and can be washed directly without affecting the efficacy of the product. 2.Because of the large fragrance in the sealed package, it should be placed for ten minutes after opening the package before wearing it. 3.Please do not wear it to kittens and sick cats and cannot be used for nursing dogs and pregnant dogs. 4.The effective period of the unsealing and opening of this collar is three months. If your pets are uncomfortable, just remove the collar (If the original packaging is not opened, the validity period is 17 months).