• This ULTRA-PLUS Training prong collar is a classic version for professional dog training.

The base neck size for each wire gauge is as follows:

2.25mm -> fits up to a 13" neck measurement; designed for use in dogs up to 40lbs

3.2mm -> fits up to a 19" neck measurement; designed for use in dogs up to 88lbs

4mm -> fits up to a 21" neck measurement; designed for use in dogs up to 154lbs

If your dog exceeds the starting length capacity of your suggested wire gauge size, you will need to purchase additional middle links

We do not condone the improper use of our training prong collars. Please note; we do not advise the use of a training prong collar on dogs under the age of 7-9 months old (breed dependent). If you are new to utilizing a training prong collar, please seek the advice of an authorized trainer.

Specifications: Steel Nickel-Plated; 2 Rings