Traditional Culture Encyclopedia - Traditional customs - Which is better, three-stage acceleration or dragging rubber band?

Which is better, three-stage acceleration or dragging rubber band?

Three-stage acceleration. All right.

1 and the third-stage acceleration are made of rubber with good quality, while the rubber band for traction is made of plastic with poor quality.

2. Three-stage acceleration can improve the initial speed and reduce the tension through docking. Its principle is different from that of traction rubber band, and its service life is longer than that of traction rubber band.