Herm Sprenger Stainless Links fit all Stainless collars including quick release.
I own two male Dobermanns - a 3yo undesexed and a 4yo desexed.
I use the small size prong collar on both dogs and the extra links allow me to customise the collar to achieve the perfect sizing for both dogs.
Herm Sprenger is the ONLY prong collar you should consider purchasing and using. It is the best collar money can buy.
I used a prong collar many years ago on many big dogs (German Shepherd, Dobermanns). I still have it and it is not as good as a Herm Sprenger (HS) prong collar. The HS in black stainless steel is hardly noticeable on my black Dobermann and is the only device that effectively stops her pulling. Just putting it around her neck is enough to change her behaviour. She is a seven months puppy and so strong that I can just hold her back. I am no weakling but this breed of dog is so powerful. I use a carabiner to connect to a double d-ring flat collar as backup.
This collar is frowned upon by most people and has been since I first used one on my German Shepherd back in the 1960s.
I thoroughly recommend the collar and the service from K9PRO.
Great product and fast delivery
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.