The muzzle can be slightly difficult to adjust to your avatar, here are a few pointers to help you do so.
For your convenience, the product come with 4 pre-adjusted muzzles: Classic Avatar, M3A2 (Avatar 2.0), M3 and M3 Venus.
The Classic leather Pet Muzzle comes with an easy to use coloring HUD that allow you to change the color and textures of the leather and the metal colors.
The HUD has a special “presets” script that you can edit to add more color presets, the default ones are only suggestions.