What is the children's leash that Jon and Kate plus 8 used on their show for their childre called?

Question

and where could I buy one for my preschoolers. I think it would be fun for my preschoolers to hold on to the rope handles to go down the hallway to go to the bathroom because it would discourage them for walking or running to fast. This disturbs the other classes in the mornings. Thanks for info.

Answer 1

Lakeshore learning it's

called Hold a Ring Walking Rope.

Answer 2

Isn't that kind of cruel to put your child on a leash?