As of May, 2020 all Sonic Seal colors will be made with SUPER STRETCH silicone. This is our third, and best redesign in 12 years. The photo is an 11yr old stretching the new seals.
Check out this great video
It keeps it dry and clean. Look at the experiment in the photo to the right
This is the only place on the planet to buy these seals. We charge $3.50 for shipping, the exact cost of the USPS stamp. We will continue to sell on Amazon in the near future.
If you want your toothbrush seal designed, email us .