Many divers/snorkelers miss out on all the small details simply because they don't have the magnification they need. Lots of individuals particularly over the age of 40 use some sort of magnification on a regular basis for reading. Divers need to read their compass, regulators, computers gauges and other instruments.
No longer take the risk of misreading any of your instruments or not being able to focus your camera. Using a pair of StickOn Bifocals is a quick and economical solution to adding magnification to any dive masks.