Eruption is a pure marvel of physical engineering. The substructure of Eruption includes a fantastic maze of Lycra straps designed to hold you in full blown comfort. It starts with a base molding wide strap. This strap pushes everything out, it flows into two rings that holds the shaft upright. A ball splitter is included to give the design an excellent fit. Now that your Eruption is in place we cover it completely with a Lycra sheath that forms one of the best looking thongs ever. Eruption is all at once sensual, erotic and stunning. If you are ready to strut your stuff you may never find a better choice. I had a blast wearing it at the beach, and it provided excitement all day.