Scalextric 1:32 Throttle Extension Cables These extension cables are suitable for use with power bases C8217 and C8241 The plugs are stereo 3.5mm jack plugs which feature automatic braking. This is now a standard feature on Scalextric from year 2000 onwards For digital throttle extrension cables see C7057 They ARE NOT SUITABLE for use with Classic Controllers, Scalextric Digital power bases or Sport World power bases