Slingshot rubber band

2040 rubber band represents an inner diameter of 2mm and an outer diameter of 4mm, which is convenient for uniform specification! #

1745 rubber band stands for 1.7mm inner diameter and 4.5mm outer diameter, which is the largest of the three rubber bands.

The light bow represents 4 strands of rubber bands on both sides, and the heavy bow represents 8 strands on both sides.

Beginners suggest using 1842 four-strand light bow (length 12cm). It is recommended to use 6 mm-8 mm steel O.

After 2 months, it can be changed to 2040 stereotyped writing (12cm)! 9 mm- 1 1 mm steel o is recommended.

The stereotyped writing of 1842 (12cm) is difficult for ordinary people to control, and its power can only be reflected by using steel O with a thickness of 12mm or more.

If you only love 4 strands, you can use 1745 four-strand heavy bow, which is about 80% of 2040 stereotyped writing, and is suitable for 9mm- 10mm steel.

The data are as follows:

2040 rubber band, eight strands 12cm stretched to 78cm to provide 19-22 kg tensile force.

1842 rubber band, eight strands 12cm stretched to 78cm, providing a pulling force of 24-28kg.

1745 rubber band, four strands 12cm stretched to 78cm, providing a tensile force of 16- 18 kg.