These ring sizers are the most effective, reliable, and easiest way to measure your thumb for our rings. We can not recommend them strongly enough.

There are eight ring sizer variants, split into two tracks to size two series of rings:

• Regular - this series of sizers is meant for our elliptical aperture rings, rings which slip over your thumb in one orientation and then rotate 90 degrees to lock. This includes Byzantine, Ottoman, Hybrid, Grooved, Tongue, Chinese Spur, Turkish, Mughal, Sarmatian, Korean, SE Asian, Ming, Fu Hao Tomb, etc. (all are TR##) Sizes are indicated by number, or in the case of the small sizer S precedes the number. (S#)

• Manchu - these size our round aperture rings, which are only the Manchu and Nubian styles. (TRM/N) Sizes are indicated by letter.

• >95% of all rings are covered by our standard sizers. Large and small sizers are only meant for those with unusually large or small hands.

• 19 and 25mm thumb widths are the approximate transition points to small and large sizers respectively.

• International Card versions are made from card stock instead of acrylic and so have a much lower shipping cost internationally.

When ordering, customers may indicate a whole number/letter size, or any fractional size in between. If ordering a set of three rings off the sizer, please indicate only the size for the middle ring out of the set.

Please note that a ring sizer does not provide the complete feeling of shooting with a given ring, and thumbs swell with temperature, time of day, and use. As a result, we still recommend the purchase of a 3 ring set, even when a sizer is used. Additionally, these are distinctly different from a jeweler's ring sizer, the sizes are not compatible, and we do not recommend jewelry sizers for sizing thumb rings.