I would never ever under any circumstances put one of this on any of my snakes. They furthest I would ever ever go with any snake would be using a tube for a short period of time.
I cannot see how this would be healthy on the snake. Dogs themselves who have worn collars and leashes for years can have back and neck problems from them if they aren't used correctly, I can't even imagine what one may do after prolonged use on a snake that is constantly pulling against it.
These creatures are not cats and dogs, they are not meant to be restrained in any way shape or form and to do so for something other than medical intervention is just going totally against the nature of the creature for no reason at all.
Snakes can be easily and simply controlled outside given they aren't little hatchlings, and without leashes.
bmm