If you plan on making rings, you need to get a ring mandrel.
Ring Size Measuring Tool With Metal Ring Mandrel Ring Sizer - Temu
Steel Ring Mandrel Jewelry Making Tools – Beaducation
Jewelry tools & jewelry displays, jewelry making tools plus beading supplies for the jeweler, beaders, hobbyist, craftsman. Metal clay, Beadalon, wire
MD280 = Stainless Steel Ring Mandrel Sizes 1-16 with Ring Blank Gauge
Otto Frei searches the world over for the best quality jewelry products and this steel ring mandrel from India is the best of all the mid-priced ring
Steel Ring Mandrel Graduated In USA sizes 1 To 15 By 1/4 Size-No Groove
Premium stainless steel for maximum resistance to corrosion and damage from your tools—includes key for tightening rings onto the mandrel.
Rockler Stainless Steel Ring Mandrels
The Urban Beader - Jewelry Making Tools, Ring Mandrel, Steel
Make a simple ring mandrel holder
Includes a high quality, stainless steel expanding ring mandrel, and a hex wrench: , Small - Recommended for sizes 4.5, 5, 5.5, 6, 6.5, 7. , Medium
Individual Expanding Ring Mandrels
Ring Mandrel with Ring Sizes - Grooved - Solid Steel —
Ring Mandrel with Markings – Jame's Place
JDG Ring Crafters Mandrels are a perfect fit for ring makers trying to get started at a lower cost than the stainless steel JDG Pro expanding ring
Ring Crafters Ring Mandrel - Size 9-13
Plastic ring mandrel / ring size checker – My Supplies Source
The Elite Set includes three highest-quality, stainless steel Expanding Ring Mandrels and a hex key. It serves the a large range of common ring sizes
Expanding Ring Mandrels - Elite 3 Set
PROFESSIONAL QUALITY RING MANDREL 1-16-MAN-295.00
Mekki's Aluminium Ring Stick / Finger Gauge / Ring Sizer / Ring Mandrel / Forming Mandrel / Gauge at Rs 499/piece, Ring Sizers in Delhi