Fleshlight
check out the "Super Tight Wonder Wave"
"This Insert has the tightness of the Super Tight with the pleasure waves of the Wonder Wave. Your eyes will roll back into your head as you experience the first insert that was built from customer requests.
WARNING...ADDICTIVE!! (We are not responsible for time taken away from other activities, lost promotions at work or unmowed lawns.)
Use with your existing Fleshlight case."