Rectal dilators for men and women. The smooth, hourglass shape helps relax the pelvic floor, reduce symptoms of pelvic pain, and restore or improve the elasticity of the anal opening. 8 progressive sizes. Each size ranges from 0.3" (≈ 0.8 cm) to 1.4" (≈ 3.5 cm) in diameter, gradually progressing to reach your goal. Available individually or as a set of 4. You can choose a single dilator or a set of 4 units in varying sizes, depending on your needs. Designed by Dr. Amanda Olson. A Doctor of Physical Therapy and Pelvic Floor Rehabilitation Specialist. Safety & comfort. Made with medical grade silicone for your safety and comfort. Detailed instructions. For use under the guidance of medical professionals specializing in pelvic floor health. Dilators can be used for both medical or recreational purposes.