OFHUH Dog Flea and Tick Collar - Tick Prevention Treatment Up to 8-Month - Adjustable and Waterproof Dog Flea and Tick Control with 100% Natural Essential Oil L ( Neck: 27cm/10.5'' Back: 32cm/12.5'' Chest: 38cm/15 ) Perfect for every day wear, sleep time and photos Comfy jacket machine-washable for easy care Your fur baby will be wrapped in cozy comfort with this adorable item This coat runs small a little.Pls pay attention to the size before payment!!Thanks!!