High Quality - The 31-ring finger sizer gauge set is made of Metal, Ring sizer mandrel is made of aluminum, anti-rust, anti-corrosion, sturdy and durable. The ring sizer belt is made of plastic, light weight, accurate and reusable, the printing is accurate and clear, and it can be carried along where ever you travel Measure Tool Size - Finger rings with 31 sizes, Each ring is engraved with USA Sizes 1-15 including 1/2 half size increments. This measures child fingers to largest fingers. Metal ring stick measure tool with US sizes of 1-15 and European sizes of 41-76 (come in half sizes, no quarter sizes). US plastic ring sizer tool - US size(1-17), finger size from 1 to 17. Easy to Read - Each ring sizer is clearly engraved with a size letter, The size letter is clear and easy to read. Professional ring measurement kit used to measure rings and ring chucks. Suitable for adjusting all types of rings. Perfect for anybody who needs to measure before buying a ring. Widely Used - Suitable for measuring wedding rings, proposal rings, birthday rings, party gifts, jewelry, etc. With the ring gauge you can easy to know which size you need, and can give you husband/wife, girlfriend/boyfriend a surprise give her/ a correct size ring as a gift. What You Get - plastic ring sizer work like a belt that you adjust around the finger. Use the ring sizer measuring tools to check your existing ring size in just a few seconds. Colour:As shown in color Material:Metal + plastic Package Contents: 1 * Ring Size Measurement Tool 1 * Aluminum Ring Sizer Measuring Stick 2 * Plastic Ring Sizer Belt Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.