assassin's ring V2 for hidden blade

This is the second version of the secret blade assassin's ring with a blade locking mechanism.
The passage of the wire is cut small for fishing line but it is enough to enlarge it with a small drill to pass from the string or the rope of badmington.

Print settings under makerware:

numbers of shells: 2
infill : 100/100
layers heights: 0.10 (If your printer is able to go below 0.10 made for a better result)
Speed while Extruding: The lower speed your printer can make
Speed while Travel