How long is the rubber band of the saw?

15cm. According to the relevant information, the seesaw refers to the saw-length model of the seesaw, which needs to be equipped with 15cm rubber band. If the length is too long, the seesaw can't exert force, and if it is too short, the rubber band will easily break, causing harm to users. The rubber band of 15cm is the standard configuration of the seesaw. Generally, a traditional slingshot with a medium length of 22-24cm can meet the stretching distance of 80cm, and the shortening of the slingshot is generally related to the personal height and arm span. For example, if a person's height is about 170 cm and the stretching distance of short stretching is 70-80 cm, then the length of the rubber band should be about 17 cm.