Frequently Asked Questions

Ring sizing.

Rannka rings are offered in US unisex standard sizing 5-13.

Other sizes are available too (i.e. size 4, size 14, etc) and in between sizes (i.e. 5.5, 6.5, etc), just add a note at the checkout stating your size.

It is recommended that you chose a size as you would for any other ring as the stretch quality of rannka rings is already accounted for, unless otherwise noted on the product page.

ring size chart

Different Ring lengths.

  • TINY: 0.4″- 0.6″  —- 1 – 1.5CM
  • REGULAR: 0.6 – 1″ — 1.5 – 2.5CM
  • MID LONG: 1″ – 1.5″ — 2.5 – 3.8CM
  • LONG: 1.5″ – 1.75″ — 3.8 – 4.4CM
  • XX LONG: 1.75″ – 2+”  — 4.4 – 5+CM


I don’t know my Ring size.

1. Measure your fingers at home by simply wrapping your finger (at the place you want to wear a ring, if knuckle, than chose that spot) with a piece of thread or thin yarn; mark the circumference and lay flat on a ruler and add a note at the checkout.
2. Go to any jewelry shop near by and ask to have your fingers professionally measured.


Can the rings get wet.

These rings are waterproof:

Kat’s glossy red ring; Clear red ring, PVC long and PVC short black ring.

For the rest of the rings, YES, but it is not recommended to soak them in water for longer period of time.


More FAQs coming soon.


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