A catenary and two circles inlaid with zirconia-1 A catenary and two circles inlaid with zirconia-2 A catenary and two circles inlaid with zirconia-3 A catenary and two circles inlaid with zirconia-4 A catenary and two circles inlaid with zirconia-5 A catenary and two circles inlaid with zirconia-6 A catenary and two circles inlaid with zirconia-7 A catenary and two circles inlaid with zirconia-8 A catenary and two circles inlaid with zirconia-9 A catenary and two circles inlaid with zirconia-10 A catenary and two circles inlaid with zirconia-11 A catenary and two circles inlaid with zirconia-12