Apparatus Air Track Part Kit

Replacement part for apparatus air track.
Kit contains :
2 heavy and 1 light vehicle with their mass ratio 2:1
2 Magnetic buffers
2 Plasticine Holders with central hole
24 Needles
20 Black plain cards
4 Catapults with slots for elastic band
1 Reel of nylon thread
2 White rods (4 mm diam.150 mm long)
1 Pack of plasticine
20 Elastic bands
1 Instruction manual.