Ring 4 Sizing Kit, Black Professional Finger Measuring Tool Compatible with Oura Ring Gen 4, Comfortable Wear and Convenient Storage, Reusable Ring Sizer Set (Size 4-15)

This Black Ring 4 Sizing Kit (1 Box, Full Sizes 4-15) is compatible with Oura Ring Gen 4, made of premium durable material, accurate and easy to use. It helps you find the perfect ring size to avoid unnecessary returns.Package Includes:Ring 4 Sizing Kit * 1Attention:1. This is a sizing kit only, Oura Smart Ring is not included.2. Keep away from children to prevent accidental swallowing or injury.3. Store in a cool, dry place, avoid heavy pressure to prevent deformation.

• 【Precise Sizing Fit】Our black ring 4 sizing kit is compatible with Oura Ring Gen 4 sizing system, allowing you to easily measure your finger and find the ideal fit before placing an order. This effectively shortens your waiting time for a usable ring and ensures comfortable wearing for you and your family.
• 【All Sizes Included】This comprehensive kit comes with a complete range of ring sizers from size 4 to 15, along with a clearly marked size guide card. It includes all the tools you need for accurate finger measurement, ensuring a perfect fit with your Oura Ring Gen 4 smart ring.
• 【Simple Fit Test】When using this ring sizer to confirm your finger size, simply perform fit tests following the numbers marked on the included guide card, to achieve optimal measurement accuracy and a more comfortable fit. For easier wearing, you can apply a small amount of water-based lubricant before testing.
• 【True Wear Experience】As a professional sizing tool compatible with Oura Ring sizing systems, this kit replicates the exact thickness and feel of a real Oura smart ring. It helps you verify and lock in your perfect fit across all sizes 4 to 15, avoiding size mismatches.
• 【Accurate Sizing Guarantee】We recommend wearing the ring sizer for at least 24 hours after confirming the preliminary size, to test the fit in different scenarios, ensure a perfect fit, deliver maximum wearing comfort and smart ring data accuracy, and avoid unnecessary returns and exchanges.