Heavy type split ring that has been flattened. The material is stainless steel SUS304 WPB. Average 1.7 times stronger than conventional products (compared to our company) Special surface treatment makes it resistant to rust.
| Model |
Size (strength) | Qty |
| 411HS | 2（57LB） | 20 |
| 3（67LB） | 20 | |
| 4（81LB） | 18 | |
| 5（114LB） | 15 | |
| 6（110LB） | 12 | |
| 7（116LB） | 8 | |
| 8（187LB） | 7 |