Review on Halti Headcollar Size 0 Black- Effective No Pull Head Collar for XS Dogs - Leash Training Solution by Marcus Powell

I first bought a size 1 for a Pomeranian/Corgi mix. The pack states that size 1 is suitable for West Highland and Shelties dogs. My dog slid out of this thing in seconds. Okay let's go smaller I thought and settled on size 0 which is advertised as suitable for bichon frize, mini dachshund and yorkshire terrier. Guess my dog slipped out of this one just as easily as the last one. My neighbor let me try a size 0 on his Chihuahua and Halti just fell off the dog. This brand needs to make smaller hats and fit their breed to fit the sizing guidelines - they are far from it!