five is used the minimum spring needed for the individual, So comfort is the most important, this dog has cardiac and pulmonary disease, so of course they they get the dog is struggling to give a die, so they use this towel because it causes a large surface area provides a large surface area for control, now of course,The other thing is that they're also really good at whipping and then scrubbing and then getting that catherine, So they're just going to lip read, Let the don rest scrub, Let the dog rest and then get that paper in the first time, So when you have difficult dogs have the best people working on them, okay this can't, and you can often actually take blood with cats cats that a relaxed when held with minimal restraint, Like so or often, Good for video fee puncture in this position, this cat barely restrained so when you do this, You want to select the right patient in select the patient that like to lie like that And when you pull the laid out, it does not try to pull its leg back and does not try to move the front end,But again, it's all about creating a comfortable environment, Said that the animal hold still, so principal five was a minimal restraint,Comfort is the most important