SIZING - Have a question about what size silicone ring you wear? Check out the sizing guide posted in the images. Inbetween sizes? We suggest you size up. You can also call our customer service department for more assistance! We would love for you to say hi!NO BS LIFETIME WARRANTY - No BS Warranty means you're backed for LIFE. Cut it? Stretch it? Break it? Lose it? We will replace it, no questions asked! Reach out to us for more information.BREATHABILITY - Our rounded interior lessens skin contact while our patented design allows air to flow in an moisture to flow out. Simple as that. No more sweaty finger.COMFORT FIT - Rounded interior lessens skin contact. You won't even know you're wearing it!MEDICAL GRADE - High quality, injection molded, elastomer blend used in hospitals and is safe to wear.