Flex

The Flex's unique, malleable, spiral-ribbed casing unwinds as you insert, creating an all-encompassing "spinning stimulation". Let the pleasure build as it winds and unwinds, providing a truly one-of-a-kind sensation that you can experience again and again!

To clean: 

Remove the Elastomer Sleeve after use and wash under tepid water, inverting the item to ensure it is fully clean, and free of all lubricant or bodily fluids.

Do not boil. The material will degrade when in contact with water over 50 degrees Celsius.
Do not wash with highly acidic or alkaline substances. If you wish to use soap, a neutral, mild body soap is preferable.

https://www.youtube.com/watch?v=A0Ttqgx1c_Q&feature=youtu.be