add small elegant spherical cabinet knobs made of natural travertine to every individual cabinet front knob size approximately 4 cm in diameter the knobs must be small delicate and discreet little travertine spheres not oversized or bulky handles maintain realistic proportions relative to the cabinet fronts use natural beige travertine with subtle pores and delicate stone variations a matte honed finish and a refined contemporary appearance place one small spherical knob on each individual cabinet front positioned consistently and appropriately for each door or drawer critical keep the knobs approximately 4 cm in diameter do not enlarge them preserve the original cabinet geometry all material finishes colors camera perspective lighting and composition do not modify any other elements of the visualization the only change should be the addition of small approximately 4 cm diameter travertine spherical knobs to every cabinet front
