The ribbon from Peru is very nice and very soft as well. Please don't put the collar on the dog if playing rough with other dogs as it can pull threads. In this case I suggest just to burn the threads down quickly with a lighter.
For the collar size measure your dog's neck around the middle, half-way between the base of the neck and the bottom of the ears. The collars in this collection have different widths, are adjustable and come with a few centimeters more space.
If you want a ribbon on another webbing colour, please send me a message!