2 x Scalextric Power Taps + spare Connecters2 x 8 ft Power Taps to extend a continuous and constant supply around your full layout. Recommended for Digital tracks over 40ft and Analog over 50ft. Scalextric straight tracks have a tab on each rail. Push the connector on to this tab and then locate the other tab on your selected track at the other end, at around mid point. **Make sure you connect the same rail to each other or your will create a power outage.