1.High quality metal: Made of Alloy+PE and polished, this ring size appliance has excellent rust resistance and durability. 2.Measure your rings correctly (size increments are clearly marked on each ring). They're just rings with measurements on them that you can try on until they fit. The finger size used to make the ring. 3.The size gauge comes with a flexible cable with a screw attachment that is easy to open by unscrewing the wire and then removing or rearranging the rings 4.Ring measuring tape: Easy to carry, light and durable, just like a belt around the finger adjustment, easy to carry when traveling. 5.It is a lightweight, easy to handle, store, and roll ring stick design. It can be tried on without the weight of other rings to measure the correct size of your ring finger. Help you get the correct ring size when ordering rings online. Have a handy tool before deciding on ring size. Material: Alloy+PE Color: as shown Measurement range: Modu 1-35 Package Contents: 1 set Ring Sizer Measuring Tool 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.