@desertdudeBy saying fiber I meant something not metal, because RTA doesn't allow re registration with metal front bumpers.
These are available in accessory shops all over , probably cheaper and more customizable in Sharjah
After checking with testing center they advised for passing ( while re-registration)
1. Front bumpers should not be metal ones ( like the ones used on patrols in Australia)
2. Should cover the front profile of tyres
As the rules keep changing , probably better to check before any modifications