Don't let grime or dirt slow down your trains! Miniatronics Electrak Clean II car is an effective and easy way to keep track clean without abrasives, chemicals, rollers or pads. The car uses electrostatic impulses generated by state-of-the-art electronics and can clean an average 4 x 8' layout in 20 to 30 minutes. Unit features metal wheels and is operated simply by placing it on track and pushing it with any loco.