![AK-9 Adjustable Collar 1 x 17 - 26"](http://k9kanteen.com/cdn/shop/products/ak-9-ak-9-adjustable-collar-5-8-x-14-18-black_eee7c480-364f-4d32-bffb-00ed38a3a3eb_{width}x.jpg?v=1606160152)
This has a plastic clip closure plus a security feature to ensure that if their collar comes unclipped it will remain on the dog.
Two sizes available: 3/4" X 13-19" is a good size for smaller dogs or puppies where as 1" X 17-26" is a good size for larger dogs.