Crib rails protect baby, this protects the crib rails.
Here's why:
Protects Baby's teeth, soothes tender gums and prevents Baby from ingesting harmful crib varnish. This crib rail PROTECTOR is made of a FDA-approved, phthalate free, non-toxic, soft plastic that easily slips over the crib rail to protect Baby's new teeth and tender gums from nasty bumps or teething attempts on hard rail edges. No adhesives are needed and it's easy to clean. Four 12" sections are included to cover one side of a standard crib.