Soft rope safe for pvc

Want to tie up your squeaky friends but not sure what is or is not safe for your special toys? Well we have taken the initiative to test (on cheaper toys) what ropes will be safe and not leech into pvc. Each one of these is enough to tie up a decent sized toy. 1 piece is one rope just like in the picture. I also wash them all to make sure they are clean after the manufacturer so there is no chance of any issues with squeaky friends.