Invented by Marcel Opinel in 1955, the Virobloc safety ring is fitted to all folding knives sizes No6 through No12. Cut out of stainless steel, the Virobloc has two sections, one fixed and one sliding. In addition to locking the blade open (safety while in use), it is now possible to lock the blade closed (safety on the go).
Available in the following sizes
- No 6 - 2.75"
- No 7 - 3.15"
- No 8 - 3.35"
- No 9 - 3.5"