Package Include: You will receive 2 pcs clinch-rings, including one Standard Black Standard (US Standard 1-17) Calender Belt and one UK Standard White Sizer Belt (UK Standard A-Z).Both Ring feeders have few enlargers for viewing clearly. Standard size: Ring feeders are marked with both US size (1-17) and UK size (A-Z).And size American has half sizes, represented by "-" between 2 numbers. Premium material: the ring crafin is made of sturdy plastic, lightweight, easy to carry and store. Comfortable when you fix your skin. Constructed of grinder, the numbers and letters on the plastic calendar belts can be easily read, thoughtful design especially for elders. Considerate Design: The ring crafin comes with few spars, which ensures its clarity and clarity. convenience. Wide application: Ring measuring tools are convenient when selecting a suitable ring. With its help, you can immediately get a correct ring size at home, saving time and your efforts.Perfect for measuring wedding rings.Essential accessories for jewelry stores, ring counters, etc.