The small size is too small for my 3.5 kg Chihuahua; I should have ordered the medium and been able to adjust it. The light is also quite heavy and uncomfortable because the rigid plastic section presses against the dog's spine. However, the light itself is very good and bright. I'll need to alter it to attach to a different harness.

The size L is perfect for my medium-sized dog, it shines brightly and in many colors. We are very satisfied. The delivery was fast, it's worth what we paid.

It meets my expectations.

Éclaire bien et la batterie dure longtemps