Here are the specs for Vilano push bikes, including the Push, Rally and Ripper models:
The seat is adjustable from 15-17".
The handlebars are 21" high and are a little adjustable.
The wheels are 11" and made of never flat foam.
Weight limit is 55 lbs.
Tools for assembly are not included, however assembly is simple with an adjustable wrench and a set of pliers.
Here are the specs for the Vilano Balance Bike Lightweight Aluminum Frame (575-ALYBAL):
Seat adjust = 15.5"-18.25"
Handlebar adjust = 22.5"-24"
Wheels are 12" and pneumatic (have tubes)