How to calculate the size of diabolo target ring

1, the difference between a fishing line and a fishing hook is that the larger the number of the splayed ring, the smaller the size and tension value. For example, the size and tension of No.3 figure-eight ring are larger than that of No.8 figure-eight ring. It is worth noting that there is no uniform standard for the model of the eight-character ring.

2. The size and model of the eight-character ring are centered on NO. 10, the length of the unfolding ring at 10 is 10 mm, and so on. 12 is 9mm .. No.8 is11mm.