Ball stretchers do exactly as the name suggests: they stretch out the balls, pulling them downstream. Why? Because they provide new and exciting experiences of stimulation.
The balls are able to both rub against the inner thighs (which feels great) and are more sensitive as a result of having them pulled taut (this causes the nerve receptors to be pushed to the surface, increasing your ability to feel even more).
Short term use of ball stretchers won't cause permanent skin stretching, however some men choose to use them repeatedly in order to get a permanently stretched aesthetic.
Whatever your desired experience, at Poppers by Post we have a range of ball stretchers to satisfy your needs.
Just remember: don't leave them on for too long at once! This can prevent necessary blood flow to your nether regions.