The Bzzz Buddies are made of hard shiny plastic, which is body-safe and phthalate-free. There is no smell, but some users might find this toy too rigid. The four caps that fit over the vibrating end are very rigid, and two of them have sharp points that might not feel so good on tender body areas. HOWEVER, for sensory play, this might be just the new sensation you're looking for.
Bzzz Buddies are fairly small, and could be mistaken for a large pen or other novelty toy. This may not be the MOST discreet, but it's definitely not phallic. Nobody will mistake your little buddy for a penis. However, the cartoon character head with the anime eyes can be a little unsettling. This design may or may not seem sexy to everyone, but for the right person, it could be a great time! The toys are very CUTE, not overtly SEXY.
Bzzz Buddies have one speed: BZZZZZZZZ. This is a strong vibration that's on the opposite end of the cartoon character. TME advertises this as 'waterproof' but water-resistant is more likely. This toy is powered by 1 AA battery, which is not included. Twisting the shaft turns the toy to 'on' 'off' or 'open' - which allows for battery insertion.
Because Bzzz Buddies are hard plastic, they can easily be cleaned with antibacterial soap and hot water or by wiping down with isopropyl alcohol.
These toys are also compatible with all types of lubricants: water-based, oils, and silicone-based lubes.
The Bzzz Buddies package is very child-like. The clear box holds the toy and interchangeable caps nestled in a clear tray. Cartoon characters and (in my case the polar bear) "Shivers' story" decorate the box, along with an invitation to "meet and collect them all!"