Our Dominant Dog Collar Was Designed By Ed Frawley Specifically To Control Reactive Dogs That Display Aggression Towards People Or Other Dogs. Measure The Dog's Neck Just Under The Jaw And Right Behind The Ears Using A String Or Cloth Tape Measure. The String Should Be Very Snug; As Tight A Measurement As You Can Get It.

There Should Be No Extra Room At All Between The Dog's Neck And The Tape Measure. If You Have Measured Your Dogs Neck Properly And Your Dogs Neck Size Is In Between Two Inch Marks (I.E. .0 - .5), Round Your Result Down To The Nearest Inch. For Example, If You Measurement Is 13 1/2 Inches Than Your Number Is 13 Inches.

Round Up For Measurements .6 - .9 Of An Inch (13.75 Becomes 14). If You Just Need A Backup Collar, Simply Select The Size That Matches The Number You Got. For Example, A Dog With A 13 Or 13.25 Neck Will Need A 13 Backup Dominant Dog Collar. Because The Length Of The Hardware Varies, Determining The Appropriate Corrective Dominant Collar Will Depend On Your Measurement.

The Name Of The Options Do Not Necessarily Relate To The Number You Get From Your Measurement Of Your Dog. The Hardware Is Smaller On The Dominant Dog Collars That Are 8 To 13, So If Your Dog's Neck Is Between 8 And 13 You Should Select The Option That Is 1 Smaller. For Example, A Dog With A 10 Neck Will Need The 9 Dominant Dog Collar.

The Hardware Is Larger On The Collars That Are 14 And Larger, So If Your Dog's Neck Is 14 Or Greater, You Will Need To Select The Option That Is 2 Smaller Than Your Measurement. For Example, A Dog With A 15 Neck Will Need The 13 Dominant Dog Collar. The Hardware Dimensions Varying Means Some Dogs With Different Neck Measurements Will End Up With The Same Option.

For Example, An Dog With 13 Neck And Another Dog With A 14 Neck Will Both Need The 12 Corrective Dominant Dog Collar, Because The 13 Collar Uses A Shorter Fastener Than The 14 Collar.