Hamilton SHA LG NEBLBK Adjustable Easy-On Dog Harness with Trim 100% premium custom dyed nylon Unique O-ring placement for maximum strength and durability Custom buckle insert enhances the look All cuts are finished away from the neck to avoid irritation Available in collars, adjustable and matching 4' or 6' leads When measuring pet's neck or chest to ensure proper and comfortable fit, add 2 inches.