A: The dual ring sizes are validated based on data from over 15,000 men worldwide, achieving a scientific balance between firmness and comfort.
Large Ring (Ø48mm): Applied to the base of the penis, it provides primary stability.
Small Ring (Ø28mm): Applied to tighten behind the coronal sulcus, its primary function is to slow venous return.
Suggested Selection: For first-time users, start with a single large ring to get accustomed to it. For stronger results, add the small ring. Feel free to adjust the size based on your preference to avoid excessive tightness that can cause discomfort.