Quantity   Component name
1 × M4 Threaded Rod
1 × 1000 RPM 12v Gear motor
1 × 4mm universal joint
1 × Small screws
1 × Small washers
1 × m4 cross barrel Nut Like those used in IKEA furniture
1 × 6x AA Battery Holder
1 × DPDT Switch Double Pole Double Switch (DPDT) Switch. With spring return to the centre.