Herm Sprenger Prong Dog Training Collar, Black 3.0 mm with ClickLock Buckle

Herm Sprenger’s chrome-plated steel prong training collar is designed for leash communication and behavior correction, with a quick-release ClickLock buckle and a 3.0 mm link size for necks up to 18–19 in (46–48 cm).

• Chrome-plated steel prong links — provide the collar’s training design.
• ClickLock quick-release buckle — fastens and opens without pulling the collar over your dog’s head.
• U.S.-made Biothane insert — adds stability to the buckle connection.
• 360-degree swivel D-ring — lets the leash rotate to help prevent tangling.
• Adjustable link construction — lets you remove or add pronged links to adjust the fit.

For leash training, the collar’s assembly chain loop tightens when a dog pulls. Its quick-release closure makes putting it on and taking it off different from a collar that must pass over the head. For the intended fit, position it snugly under the ears and jawline; correct sizing and placement matter for use and safety.

How do I choose the right collar size?

Use the neck-size range, not the collar’s overall length, to select this 22 in (56 cm) collar. This black model has 3.0 mm links and is intended for necks up to 18–19 in (46–48 cm). If you need to change the length, adjust it by adding or removing pronged links.

• Compare your dog’s neck measurement with the stated neck-size range.
• Choose the fit based on neck size rather than the 22 in overall length.

How do the buckle and leash ring work?

The ClickLock buckle opens and closes without sliding the collar over your dog’s head. The swivel D-ring rotates a full 360 degrees, allowing the leash to move freely around the collar. A black plastic jacket slides on and off the unfastened buckle and does not interfere with the buckle’s operation.

• The Biothane insert reinforces the buckle-to-prong connection.
• The insert is made in the U.S.A.

How does this collar work for training?

The assembly chain loop tightens when the dog pulls on the leash, providing additional help with training and behavior correction. For the collar’s intended use, wear it snugly beneath the ears and along the jawline.

• The collar is made from chrome-plated steel.
• The prong collar is made in Germany and assembled and enhanced with Biothane in the U.S.A.

This collar is suited to handlers looking for a prong-style training collar with a quick-release closure, adjustable links, and a rotating leash attachment. Its sizing is based on neck measurement, and its intended position is snug under the ears and jawline.