This package contains 1pc PF US White (1-17) ring sizer, 1pc UK Black (A-Z) ring sizer, 1pc ring core, 1pc finger size measuring ring tool, 1pc ring Repair tools, 1 rubber jewelry hammer, 2 polishing cloths, 2 polishing rods and 1 polished knife, this combo set comes with 11 pieces in total. The measurement method is very simple and the rubber hammer is also made of high-quality rubber. So no need to worry about damaging your ring, to use our tool kit. Ring mandrel for US sizes 2-15 and UK sizes D-Z, with line marks on the shaft to measure the ring in a straight line before measuring; Ring sizer includes 27 pieces, US sizes 0-13, half sizes ( Negative numbers mean half sizes), no quarter sizes, making it easy to get your loved exact size. A series of practical repair tools and polishing tools to make your aging rings sparkle again. The wooden ring mandrel is suitable for ring polishing and grinding and slight deformation adjustment, not suitable for heavy and hard rings. The ring measuring tool can help you repair deformed rings or polish jewelry, so you can become your lover's jewelry custom repair master.