Ballstretcher Unit-X Black

The Oxballs brand Unit-X ballstretcher is a black sextoy for making male attributes more powerful.
In effect, it grips the bursa and penis thanks to the rings with stretchable diameters.

Passage of the bursae in the ring of 30mm of diameter. They are then more round.
The penis passes through the ring of 40mm.

Made of stretchy material called TPR