Available in three sizes (small, medium, large) to satisfy almost everyone, these plugs are crafted in Holland from a special 100-percent non-toxic, phthalate-free material that has also been certified by Toxicon, an independent U.S. lab. We like the matte finish, the subtle contours of the ripples, and the extra-wide flanged base for safety. Tasteful packaging and the “Made in Holland” label add extra appeal.