ULTRA-PLUS Prong Training Collar - Center-Plate, Assembly Chain, 2 Rings, Curogan (3.0 mm Short)

The ULTRA-PLUS is a professional prong-style training collar built for precise, controlled correction and pull limitation. Its center-plate links the prongs for a stable, evenly aligned fit. This version is made from Curogan, a nickel-free copper alloy that won't rust and suits dogs with nickel sensitivities, in the 3.0 mm 'Short Version' (the look of a 2.25 mm collar with 3 mm strength).

The 3.0 mm Short advantage

The prongs match the physical size of our 2.25 mm gauge but carry the strength of a 3 mm gauge - a discreet look with serious holding power, suitable for dogs up to 88 lb (40 kg).

Key features

• Curogan (nickel-free copper alloy) - rust-proof and hypoallergenic, warm-toned finish.
• Center-plate design - links the prongs for a stable, aligned fit.
• 2 rings - a live ring that engages the martingale tightening, plus a fixed ring for non-tightening attachment.
• 3.0 mm Short Version - 2.25 mm footprint with 3 mm strength; for dogs up to 88 lb (40 kg).
• Assembly chain - martingale-style for precise correction.

Specifications & sizing

• Material: Curogan (nickel-free copper alloy)
• Wire gauge: 3.0 mm (Short Version)
• Rings: 2 rings (live plus fixed)
• Closure: assembly chain
• Size: 20 in (50 cm), adjustable by links
• Suitable for: dogs up to 88 lb (40 kg)

Frequently asked questions

What makes the 3.0 mm Short Version special?
It keeps the compact, discreet footprint of a 2.25 mm collar but carries the holding strength of a 3 mm wire gauge - a low-profile look with serious control, suitable for dogs up to 88 lb (40 kg).

What are the two rings for?
The live ring engages the martingale tightening for an active correction, while the fixed (dead) ring gives a static, non-tightening attachment - clip to the live ring for training corrections, or to the fixed ring when you want a steady, non-closing fit.

What is Curogan, and who is it for?
Curogan is a nickel-free copper alloy that resists rust and is gentle on nickel-sensitive skin, with a warm gold tone - the right pick for dogs that react to nickel, with the same strength as steel.

What does the center-plate do?
The center-plate links the prong sections at the front so the collar stays aligned and sits flat and stable around the neck, instead of bunching or rotating like a plain chain - giving more even, predictable pressure.

How does the assembly chain limit pulling?
The assembly chain works martingale-style: when the dog pulls, the chain draws the collar to a controlled, limited tighten and no further, so the correction stays measured rather than continuous.

How should it fit and where does it sit?
An ULTRA-PLUS should sit high on the neck, just behind the ears, snug enough that it can't slide down to the wider lower neck where it loses effect. Add or remove links for that fit, and introduce it under professional guidance.

Is a prong collar humane, and are the tips sharp?
The prong tips are smooth and rounded, not pointed - they apply even, distributed pressure around the neck rather than poking. Fitted correctly and paired with proper training it is a clear communication tool, not a punishment device; introduce it under professional guidance.

Can my dog wear it all day or on a tie-out?
No - a prong collar is a training tool for active, supervised sessions and should come off afterward. Never use it for tie-out or unsupervised wear; use a flat collar or harness for everyday and downtime.