Truelove Reflective Dog Collars Adjustable Dog Puppy Collar Walking Training XXL Size of collar In CM / INCHES (circumference) Width of collar XX Large 55 - 60 cms / 21.7 - 23.6 2.5 cms / 1.0 inch PLEASE NOTE: The sizes of our Truelove reflective dog collars sizes are accurate and as long as you measure your dog the collar should fit well. There is also a buckle to provide some fine adjustment if required. Just measure around your dog's neck and leave enough room to allow for how you want the collar to fit. You can then choose the correct size to fit your dog. Sizes below shows girth size (circumference) around the neck in centimetres. If you are in doubt or if you are very close to the maximum of one size then please choose the next size up. As you can see from the sizes below (and show in the video) the collars do have quite a bit of adjustment. A general rule of thumb is to run a measuring tape or piece of string around the neck. Please measure it when it is at the desired fit, allowing for a small gap around the whole neck. Alternatively, you measure the neck when the tape or string is tighter to the surface. You can then add around 10% to the size. For accuracy, the first method is advised. Truelove offers a range of popular reflective dog collars in a choice of fashionable and eye-catching colours. They include blue, pink, red, black, orange, brown, purple and neon yellow. They have 3M scotchlite reflective materials built-in so they ensure you and your dog are seen in the dark. They are a high quality, light strong, hi vis dog collar from Truelove which are built for comfort. They are one of the best selling Truelove dog collars in the UK. Qualify for 7-15% discount when you also purchase a matching lead, double ended lead or harness. See matching set options here. Main features at a glance: • Fully reflective dog collars for those dark walks • Strong, light and tough • They do not absorb a lot of water • Easy to fit and take off • Suitable for puppies, small and large breeds • Can be fine-tuned and adjusted to fit • Super strong lead attachment ring