Guards are an extra barrier to prevent the dogs scavenging, and also add an extra barrier from their teeth particularly in the 110 and the 107 muzzle.
They are secured using zip ties (supplied).
Made by Birdwell the guards will fit externally to the following muzzles:
Don Pare 107 size 5 & 6
Don pare Box muzzle 101
Birdwell size medium
And they will fit inside:
Don Pare 114
Birdwell size large
Both Don pare and Birdwell make guards for their own brand of muzzles, however we have found they are interchangeable.