The PBS Kids Playtime Pad + Kid-Safe Tablet is a 7" tablet running Android 8.1, with a removable rubbery protective case and plenty of pre-loaded PBS Kids-themed content. Following the instructions in the included manual & Quick Start Guide (both English-only), I first plugged the tablet into a wall outlet to fully charge with the included wall charger & Micro USB-to-USB cable. When I was ready to use it, I accidentally turned it on while removing and replacing the rubbery case (I must have somehow pushed the "on" button while doing this), and the tablet powered on.
During the initial setup, you are in Parent Mode, and must set up a Kid Account for each child who will be using the tablet. Cali is 8 years old and fond of dogs, so I chose a "dog" avatar for her. You do need to select a method by which your children will log into their accounts (tracing a pattern, typing a PIN number, or something else). It's probably best if your child picks a login which he or she can remember (and which you know), but which is different from your Parent Mode login. During Kid Account set-up, you can select which apps in addition to the squeaky-clean pre-loaded content your child will have access to; you'll only want to pick a few, however, as the Kid Mode "My Apps" screen only has room for 9 apps (including the pre-loaded content), so if you select more during the set-up process, you will get an error message and have to restart that child's account set-up from scratch. (Camera and Sound Recorder are required to make full use of some of the pre-loaded apps, and Clock and Calculator are pretty safe, but you'll want to be careful about allowing access to other apps if your child doesn't yet know how to only seek kid-friendly content on the Internet when unsupervised.)
A large part of the pre-loaded content is episodes and clips from PBS Kids TV shows, and there's enough of that to easily keep a child entertained for a car ride. There are also a lot of pre-loaded games featuring PBS Kids cartoon characters (f.ex., Cookie Monster or Arthur), and the difficulty of the games seems to correspond to the interest level of the cartoon characters. Some of the games are grouped as "Play & Learn Science," and are available in both English and Spanish. Nothing too difficult for children in preschool through primary grades.
When your child is old enough for more advanced content, it's not that difficult to change the Parental Controls to allow him or her access to more age-appropriate stuff, or just change the default boot screen to Parent Mode and operate the PBS Kids tablet as an ordinary Android tablet. It's colorful, fun, well-protected, and a kid-friendly "real" Android tablet for younger kids, which can convert to a regular Android tablet as your kids grow up. Highly recommended!