Medium Anal Dilator Set - Sizes 3 - 6This item qualifies for Free Shipping in the U. S. The Intimate Rose Medium Anal Dilator Set includes sizes 3 6 of our high quality, medical grade rectal dilators. They are firm enough to hold their shape, but are significantly smoother and more comfortable than dilators made of plastic. Rectal Dilators for Men and Women. The smooth, hourglass shape helps to relax the pelvic floor and reduce symptoms of pelvic pain, and restore or improve elasticity