Bestbuy offers Samsung - Galaxy Ring Sizing Kit - Black with $10 Gift Card for $10 with free shipping.

Product Description:
Finding your Galaxy Ring size is a breeze with our Galaxy Ring Sizing Kit. Simply select your best fit from a variety of sizing options and receive a $10 Best Buy Gift Card towards your future Galaxy Ring purchase. 

• A sizing kit for a flawless fit
  Finding your perfect fit is a breeze with our convenient Galaxy Ring Sizing Kit¹; Select your best fit from a variety of sizing options.
• Get a $10 Best Buy Gift Card
  Purchase the sizing kit for $10, which includes 9 sample rings² to try on and a $10 Best Buy Gift Card towards your purchase of Galaxy Ring (terms and conditions apply).
• How to use the Galaxy Ring Sizing Kit
  After receiving the Galaxy Ring Sizing Kit, choose a sample ring and wear it for at least 24 hours³ (including sleep); Check that it’s not too small or too big.
• Sensors should face your palm
  The 3 bumps on the inner part of the sample ring are where the sensors on the actual Galaxy Ring will be; Turn the sample ring so that the sensors are facing towards the palm of your hand.
• Sizing differs from regular ring sizes
  Galaxy Ring sizes² are different from regular ring sizes, so find the right fit with the Sizing Kit and follow the instructions provided; Galaxy Ring sizes range from 5-13 and there are no half sizes.