I threw away the packaging and have been using my RADIUS for months and need a replacement. How do I know if I have an Original or SCUBA?
The easiest way to tell the difference is that if the thumb grip is smooth, it's an Original and if it has bumps and ridges, it's a SCUBA. A few other ways is that the Original Toothbrush is made from a hard cellulose plastic and does not have a flexible neck. The Original also has a "sea glass" appearance meaning that the handle is almost translucent. The SCUBA is made from rubber so when you push on the brush head the neck will bend and flex. The SCUBA handle is opaque and you cannot see through it.
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The RADIUS Customer Service Team