Usage Tips:Ring sizer tool for Clear And Intuitive Reading the size of your finger, Reduce more interference than the old model. Ring sizer mandrel is made of aluminum, solid conical ring sizer mandrel can be used for ring measurement and ring repair. The ring sizer made of high-quality materials, soft and resilient, for a long service time. With the ring gauge you can easy to know which size you need and can give her/ a correct size ring as a gift. To that the size of your ring is both wearable and not easy to slip off. You need to measure the fingers you often wear, multiple times at different times, and don't forget to measure the finger joints. Colour:As Shown Material:Metal Package Contents: 1set * Ring Sizer Measuring Tool(4 pieces) Only the above package content, other products are not included. Note: Light reflection 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.