1. Prepare 4 red and 1 green torsion bars.
2. Cut three red torsion bars into three equal lengths.
3. Fold each cut red torsion bar in half from the middle.
4. Fold the green torsion bar in half and screw it together.
5. Fix the nine red torsion bars with their openings facing upwards on the green torsion bar.
6. Turn the nine red twist sticks upwards, so that a tulip is ready.
Torsion bar, also known as "hair root", has strong plasticity and is a necessary game material for accompanying children at home. It can exercise the flexibility of children's small hands, identify colors and activate imagination. Compared with ultra-light clay, origami and paper-cutting, the operation is simple and easy to use.