hello Carlos, you get a nice idea!  I know you have good orientals over there.  They were fought with the same plastic sharp spurs than Spanish type birds.  It is good to select speed but not power and stamina, the main qualities of the orientals.  What are the weights of your orientals?  My boxing  spurswere basically designed for birds from 6 1/2 lbs to 9 lbs.  If your birds are smaller, I think you need to make smaller boxing spurs.  If you want a cheap trial, buy Brazilian plastic spurs(CGB) and cut the plastic tip off.  Blunt them. It will not be as good as the boxing spurs because these ones have a larger impact surface.  And thanks to this, they do not blind.  Keep in touch. And tell me if I can help you. Send me your e-mail.Best regards. Philippe