- Halo Collar
The Halo Collar itself is an electronic unit that comes in one size and attaches to a strap - this strap is what comes in multiple sizes. You can also choose to attach the Halo Collar to your own strap.
The Halo Collar is flexible, comfortable, and its durable design makes it a great fit for dogs that weigh a minimum of 20-25 lbs (9.1-11.3 kg) and are typically over 5 months old. When you purchase your Halo Collar kit, you choose a size for the strap and it is this strap that has a size associated with it or you can use your own dog collar. If you decide to use the strap that comes with the collar and your dog is in between sizes, we recommend getting the larger size since you can trim it down to fit your dog.
In the event that you have a growing dog and/or you find that you have not measured properly, you can order a new strap on our Parts & Accessories page.