MTH: 30-5258 - RailKing Market Street Bump N Go Trolley - O Gauge - The horse-drawn trolley was the first important step in trolley technology as it demonstrated the great efficiency of steel wheels on tracks. Horse-drawn trolleys were in wide use prior to the 1880s and electricity. The development of electrical trolleys eliminated the problem of horse excrement and animal maintenance. - Most trolleys use metal rails like a train that were embedded on city streets under overhead catenary wires supplying electricity. The group of wires has an upper strong wire in a curve (catenary) connected to a second wire below called the 'contact wire'. The contact wire provides a smooth surface to follow for long overhead poles with conductors on the vehicle. - Bring the Magic of Trains Home with the O Gauge Bump-n-Go Trolley! Featuring a lighted interior, metal wheels and gears and a long-lasting motor. The unit operates on any O Gauge track system and features an Automatic Bumper Reversing Mechansim (ABRM) that changes the car's direction when it hits a track bumper. - Features: - Intricately Detailed ABS Body - Metal Wheels, Axles and Gears - Colorful Paint Scheme - Precision Motor - Lighted Interior - Moveable Power Pole - Automatic Reversing Bumpers - PRODUCT SPECIFICATIONS - Gauge: O Gauge - Power: AC Power ONLY - Min Curve: O27 - Dimensions: 8 1/4" x 2 3/8" x 3 1/3" -