Medium Ohdan -- Super Soft silicone -- O - 1919 Discount Eligible It does not seem to

It does not seem to be in danger of coming out of the toy

Circumference of the head: 5 inches

Diameter of the Entrance: 1

and medium (0050) silicone (also rarely firm 10A)

They light up very bright under a UV light

Medium Ohdan -- Super Soft silicone -- O - 1919 Discount Eligible It does not seem to**Before buying, please familiarize yourself with our Store Policies and Shipping Policies. For information on silicone firmnesses, please visit the Our Silicone page.** Medium Ohdan Firmness: Super Soft (0020) Color: copper, pale aqua, pale green Approximate Measurements: Total length: 6. 5 inches Useable length: 5. 5 inches Diameter of the head: 1. 4 inches Circumference of the head: 4. 5 inches Widest shaft diameter: 2. 5 inches Widest