Good grip for parents' bigger hands
Between Plackers, Firefly, and DenTek, these are my favorite when it comes to kids flossers.  The floss head is small enough to go in and out of kids mouths with ease and the handles are big enough to give parents a comfortable grip.  My child is only 4 and every time after she flosses, I check to make sure she didn't miss anything.  These flossers are both comfortable to handle for me and her.  In comparison the DenTek are very thin and flimpsy and not ergonomic at all for parents' hands.
Rating: 5 stars