🐕 There is an M size to choose from. Please follow the size chart to measure your dog's neck carefully before you place the order to ensure the collar fits well with your dog. You should leave a finger width when you measure. 🐕 This dog collar is made of nylon, Wear-resistant, and durable, it can be used for a long time. The cotton-padded lining is soft and comfortable and will not hurt your dog's neck when running. your dog in high-traffic areas our dog collars for large dogs features an easy- 🐕 The handle can help you control your dog, when you training, hike, walking, running, and provides better flexibility for running, walking, active play. 🐕 Each size collar can be adjusted between 3 inches. It is recommended that you choose your dog's collar according to the middle size range. 🐕 The metal buckle can be released quickly, making it easy to put on and take off. D rings can be tied with a tow rope to accompany you on a walk.