【Package Contents】3 cat calming collars came in a packaging tin,and they were wrapped individually for storage. The back side of the tin box is the using instructions. The color of calming cat collars are purple that is suitable for the most cat breeds. The length of calming collar is 21 inches/48cm which is suitable for all kinds of cats. 【Safe and Effective】The ingredients including lavender and chamomile essential oil are safe for pets and human; The calming cat collars start working within 1 hour of wearing and will release pheromones for lasting up to 60 days. pheromone can release the maternal pheromone that reassures cats. Cats will remember and respond to pheromones throughout their lives, and then improve their stress-related behaviors. 【Wide Applications】 This calming collar for cats works well in many stressful situations such as fireworks, thunderstorm, separation from the owner, traveling, excessive noise or any other situation that can to your cat being nervous, preventing inappropriate stress reaction such as excessive meowing, pee marking or furniture scratching; 【Adjustable & Waterproof】The collar is an adjustable collar that can be easily cut to fit different sizes of cats‘ neck . With thoughtful waterproof design, the cat collar can walk normally in rainy days, even when the cat is bathing or swimming. You can also take off the collar to maintain better effect. 【Warm Tips】If you find that your cat’s hair fall too much than usual after using the calm collar, please stop using it immediately. Your cat may be allergic to lavender. If you think the smell of lavender is too strong, please open the package for a while before using it. Because the anxiety relief effect on the cats is affected by many factors, such as wearing time, external environment, or cat genes, etc. Description Item Type: Calming Collar for Cats Material: TPR Color: As the picture Feature: Adjustable Size: 32CM/12.60" 1. Adjustable size: The length is 12.6'' ,suitable for most dogs and cats. You can adjust the length according to your pet's neck to ensure comfort and it will not fall off. 2. Low sensitivity: Healthy materials and addition of non-allergic ingredients do not worry about animal allergies. 3. Continuous protection: Usually, the product can last up to eight months. 4. Waterproof: Even in the water, the collar can work, and the protection time will not be reduced. 5. Adjustability: relieving pet anxiety, maintaining good mood and promoting healthy growth Package Include: 2 x pet calming collars 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 different from what you expect, please allow it. 3. 1.00cm=0.39"