Completeness:

Cart - 2 pcs;

Balancing weights 100 g - 4 pcs;

Barriers 10cm, 5cm, 3cm - 2 pieces each;

Spring - 4 pcs;

Pulley - 2 pcs;

Legs - 3 pcs;

Block 5mm - 1 pc, 10mm - 2 pcs;

Ring - 4 pcs;

Rubber thread - pcs 1 4 pcs;

Thread - 2 m;

Compressed air source - 1 pc.