If you're looking for a way to spice up manual solo or partner play, you can't go wrong with getting a pack of these textured finger sleeves. They are made of 100% body safe silicone and should fit just about any finger, as well as the typical bullet style vibe!
The most helpful critical review
Not Awful, but Not Great
The positives here are that they are very easy to clean and care for, just soap and water and dry. There are no batteries to worry about and it's a non-latex product. The biggest negative is the sizing. If you are like myself and have small fingers, they will just keep sliding off. On the flip side, if you have large fingers these do not stretch well.