Tag-along. Trail-a-bike. We had one for a little while. Problem is they are kind of big for small kids. By the time they can actually pedal the thing. They can ride a 16" wheel bike and keep up pretty well. My kids were off training wheel bikes before age 4 (12" wheels) Now they are both on 16"wheels. The tag-a-longs are 20" wheels.
98 uzj100. Factory rear-ARB front locked 4.88's. ARB Bull, Warn 9000, Irbis rear bumper, Slee sliders and belly pan. OME t-bars w/863 rears, HID, XM