I bought 2 of these M4light muzzles one for my german shepherd and one for my german shepherd/huskey mix. Both muzzles are are great and fit the dogs perfectly. When I first put them on they tried to get them off but couldnt, now they dont mind wearing them. I got them so I could introduce them to each other with out fights breaking out between them, they are doing a great job. These muzzles are made of quality materials and the workmanship is outstanding. I'm planning on getting leather muzzles for them also. This site diffently has my business for all my future need. Great Products at reasonable prices