Prong Collar 20in 3mm Violet Purple - Short Links with ClickLock

In this review of the 20in prong collar with a Biothane insert, the bottom line is simple: it is a precise, adjustable training tool for owners who need reliable correction and easy handling. The collar is built for dogs with necks up to 16 - 17in and delivers predictable tightening thanks to seven short links per side. The ClickLock buckle and swivel D-ring make on/off and leash rotation straightforward, while the U.S.-made Biothane insert stabilizes the buckle connection. For owners seeking German-made construction with U.S. assembly details, this collar earns attention.

Key Features

• Size guidance: Designed for neck sizes up to 16 - 17in and 20in overall length so buyers know which dogs it fits.
• Adjustable links: Short links can be removed or added to fine-tune fit and tightening behavior for more precise control.
• ClickLock buckle: The quick release ClickLock system allows fast placement and removal while retaining secure closure during walks.
• Biothane insert: A U.S.-made Biothane strip reinforces the buckle area for a stable, reliable connection between buckle and prongs.
• Swivel D-ring: Allows 360-degree leash rotation to reduce tangles and keep the collar functioning smoothly during movement.
• German stainless steel: Constructed with Herm Sprenger engineering for durability and consistent performance.

Who It's For

This collar is aimed at experienced dog handlers and trainers who understand prong collar mechanics and need a model sized for dogs with necks up to 16 - 17in. Its short links give fine adjustment for dogs that need precise correction rather than broad pressure changes.

It is not the best choice for first-time owners unfamiliar with prong use or for dogs that require only a gentle martingale or flat collar. Owners seeking a non-correction training option should look elsewhere.

Pros & Cons

Pros

• Durable 3mm stainless steel construction provides reliable long-term use.
• ClickLock buckle and Biothane insert offer quick handling with a stable buckle connection.
• Seven short links per side allow more accurate regulation of tightening for refined correction.
• Swivel D-ring reduces leash twist for easier walks.

Cons

• Not suitable for owners unfamiliar with prong collars or for dogs that only need low-pressure control.
• Plastic jacket is designed to slide on and off the unfastened buckle, which may require attention during assembly.

Specifications

Overall length	20in
Designed neck size	Up to 16 - 17in
Wire gauge	3mm
Link style	Short links (7 per side)
Buckle type	ClickLock quick release
Additional parts	Swivel D-ring and U.S. Biothane insert
Origin	Made in Germany, assembled/enhanced in U.S.A.

Our Verdict

The 20in 3mm prong collar in violet purple is a well-built, practical training tool for owners who need precise control and quick handling. Its short links, ClickLock buckle and Biothane reinforcement make it a dependable option for dogs that fit the specified neck size, offering good value where effective, adjustable correction is required.

Frequently Asked Questions

How do I size this collar?
The collar is 20in overall and intended for necks up to 16 - 17in; adjust fit by removing or adding links so the collar sits snug under the ears and jawline.

Can the buckle be removed or replaced?
The ClickLock buckle is a quick release design intended to remain, and the black plastic jacket is meant to slide on or off the unfastened buckle without affecting enclosure function.

Is this collar fully assembled in the U.S.?
The prong collar is manufactured in Germany and assembled or enhanced with the Biothane insert in the U.S.A.; contact the seller via your orders page for warranty questions.