Crawler SeeSaw Obstacle 1:24th/1:18thProduct Details RC Overhaul's table top sized SeeSaw obstacle for 1 24th and 1 18th scale vehicles is a pivotal obstacle for any indoor outdoor crawler set up! Made from laser cut wood pieces, it comes flat packed and in a matter of 30 minutes you can have this obstacle built and ready for action. A feature of this SeeSaw is the optional use return mechanism which means once you've conquered the obstacle the bridge position returns to the same start