Ring Sizer - adjustable and reusable ring sizing tool


Need help finding your ring size? This is a handy tool to determine US ring sizes in both whole and half sizes from 1 - 19. Great stocking stuffer for a jewelry fanatic.

To use, simply pick the spot on your finger and slide the sizer to tighten comfortably around it. The arrow on the sizer points out your size. Use it over and over again. So handy! 

  • Sizer band: 5mm
  • Find your US ring size from 1 - 19
  • Made in the UK
About your order:
  • Will ship in 1-7 business days via USPS
  • Free lifetime warranty!
  • Worldwide shipping is FREE for orders of $100
      • Our prices include applicable sales tax

Build your ring stack and save $3 off each ring when you order two or more of our adorable Stacking Rings

Grab our most versatile jewelry tool, our jewelry Extender


A little about Foamy Wader

Creating jewelry with understated details and nautical inspiration is our calling - we've coined our aesthetic nautical minimalismWe handcraft jewelry for all you mindful thalassophiles (lovers of the sea) with understated style that share our belief in the deeper value and meaning of handmade goods.

Because everybody's idea of perfect is just a little different, we focus on custom made to order jewelry. Each piece is handmade for you with love and the utmost care in our Whidbey Island studioRead more about our story, shop, and ethical practices

We design our delicate pieces to be durable enough for 24/7 wear, but life happens! We repair breaks on our jewelry, no questions asked. Read more about our lifetime warranty

We've garnered SO MUCH positive feedback in our 13+ years in business! Check out our reviews on Yelp, Google, Facebook, and over 1300 5-star reviews on Etsy


Let’s keep in touch!

For dreamy content and updates, like/follow us on
Facebook, Instagram, and Pinterest 
For process videos and silliness, follow us on TikTok

LOVE what you see and want to be in our inner circle? For exclusive access to SECRET SALES and limited editions, join our VIP list (you'll be glad you did!)

Thanks for checking us out. You’re beautiful and we like you.