ULTRA-PLUS Prong Training Collar - Center-Plate, Assembly Chain, Curogan

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, with a choice of wire gauges.

Choosing your gauge

A thinner wire gauge suits smaller, lighter dogs; a thicker gauge gives more holding power for larger, stronger dogs. Pick the gauge and length that match your dog, then fine-tune with links.

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.
• Assembly chain - martingale-style for precise correction and pull limitation.
• Three wire gauges - 2.25, 3.25, and 3.99 mm for different dog sizes.
• Link-adjustable - add or remove links for a correct fit.

Specifications & sizing

• Material: Curogan (nickel-free copper alloy)
• Closure: assembly chain
• Wire gauges & lengths: 2.25 mm - 16 in (41 cm); 3.25 mm - 23 in (58 cm); 3.99 mm - 25 in (63 cm)
• Use: professional training tool, adjustable by links

Frequently asked questions

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.

Which wire gauge should I choose?
Match the gauge to the dog: the 2.25 mm suits small-to-medium dogs, while the 3.25 mm and 3.99 mm give more holding power for larger, stronger dogs. Each gauge comes on its own base length, then fine-tunes by links.

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.

How do I size it - by the listed length?
Treat the listed length as a maximum, not the fit. Dial it in by adding or removing prong links so it sits snug high on the neck - better to start a little long and remove links than to run out of room.

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.

Should I use a backup connection?
Many handlers clip a short backup link from the prong to a flat collar or harness, so that if a link or buckle ever opens under a hard hit the dog stays connected - inexpensive insurance against an escape.