[Ring inner diameter]

This is a ring gauge bar that will help you know the size of your ring.

Insert the ring that you want to determine the size, and you can see the size.

Material: Plastic
Size: Length: Approx. 10.4 inches (26.5 cm) / Thickness: Approx. 1.0 inches (25 mm); Weight: Approx. 1.4

Measurement range for USA sizes 1.5 to 15.25 (0.25 increments)
/ European Standard Size 1 - 36 (1 increments) /

JIS-ISO standard size 41 to 76 (1 increments) = European standard size 41 to 76 (1 increments) = inner ring circumference (1.6 to 3.0 inches (41 to 76 mm) / ring inner diameter (13 to 24 mm)

There are 4 kinds of usa size/ring inner diameter(diameter:unit) on one side,
The other side displays the new European size/JIS-ISO standard sizes,
You can measure these 4 sizes at one time.
JIS/ISO size is virtually the same size as traditional European standard size,
The inner circumference of the ring (unit:mm) is the same as the measurement of the ring at the same time. Made of lightweight and portable plastic, it is also popular by importers and jewelry shops.

Whether you are going to travel abroad or purchasing a ring on an overseas website, it is very convenient to see what ring you have already made abroad.

Please note that this gauge cannot be used in European UK/Ireland/Germany/Swiss because it is different size types.

It is also not suitable for some regions that use the old standard size.