Model: The locomotive has an mfx digital decoder. One axle is powered, and traction tires are fitted. Coupler hooks are fitted. All cars are fitted with Relex couplers. Length of the train 45.3 cm / 17-7/8". The starter set also contains building blocks for constructing an elevated railroad. The building blocks can be used to build elevated railroad pillars of different heights to create uphill or downhill gradients. The tracks are supported on adapter building blocks, which are also included. Contents: 18 curved tracks R1, 7 straight tracks 188.3 mm / 7-7/16", and 1 base station. All tracks are transparent. 56 building blocks for constructing the elevated railroad pillars and 12 adapter building blocks for securing the track. A switched mode power pack and a handy wireless infrared controller – the “Märklin Power Control Stick.” 2x AAA Batteries are included. Find more Märklin explanation videos on our YouTube Channel Spare parts for our articles can be found here in our spare parts search.