Designed Exclusively for Fittr HART Ring: The Fittr HART Sizing Kit matches the exact shape, thickness, and fit of the Fittr HART Ring for accurate sizing
Unique Sizing System: Features a specialized sizing system that differs from standard ring sizes, ensuring you get the most accurate fit for your Fittr HART Ring
Multiple Size Options Available: Choose from 8 different sizes ranging from 6 to 13 to find your most comfortable fit before making your purchase
Three Color Choices: Select from 3 different color options to match your style preferences and personal taste
Easy Three-Step Process: Purchase the sizing kit, wear the sample rings to determine your comfortable size, then use that size to order your Fittr HART Ring with confidence