Stays on without straps or a
harness. The base of the extension squeezes the base
of your cock like a cockring, allowing a harder
erection that lasts longer. Can also be used without
an erection by placing the enhancer over the penis
and squeezing out the excess air from the chamber. 7
inches in length on the outside, 2 inches wide, 6
inches deep inside, 1 inch wide hole without much
give.