Babies are very curious kinds, always wanting to put whatever comes their way into their mouths. As parents, this may be a tough situation for you because you will need to make sure your child is 100% hazard-free, choke-proof, and child-friendly. In your pursuit of making your house child-friendly, look for objects that cannot fit through a toilet paper tube. Anything that can fit a toilet paper tube can fit into a child's mouth and hence, should be kept out of the baby's reach. This is the toilet paper roll test for babies!