Tenga Flex Black Masturbator
The flexible pleasure tunnel has different textures and different levels of tightness. The flexible outer sleeve's spiral-shaped grooves move back and forth every time the sleeve gets moved up and down. The amount of stimulation can be controlled by how hard the person squeezes.
There is a hole at the top of the toy. A finger can be used to control the suction effect.
The pleasure tunnel should be removed from the outer case after use and be cleaned