https://www.instructables.com/Knex-small-off-roader/
Knex Small Off-roader : 5 Steps - Instructables
Knex Small Off-roader: This is a small off-road 'truck' i built. The beauty is in its simplicity, and it can climb over a medium-sized pile of knex or other...
small off roader5 stepsknexinstructables