★ material: 316 titanium

There are 7 yards， 8 yards， 9 yards， 10 yards

7 yards， the inner diameter of about 1.75CM， length 5.45CM

8 yards， the inner diameter of about 1.85CM， length 5.7CM

9 yards， the inner diameter of about 1.9CM， length 5.95CM

10 yards， the inner diameter of about 2CM， length 6.2CM

11 yards， the inner diameter of about 2.1CM， length 6.5CM

12 yards， the inner diameter of about 2.15CM， length 6.8CM

13 yards， the inner diameter of about 2.2CM， length 7.0CM