[] A combination of heavy ring stretch and reducer. No need to hold it with your hand. base allows you to keep stable while expanding the ring. Most of the time you professional. If you want to make multiple rings of size, this steel expansion ring core set is a life -saving straw, because you can easily replace any size and achieve comfortable stickers in a few seconds[Scope of use] Very suitable for jewelry repair shops or individuals. The heavier base expansion ring core shaft is suitable for a ring with a size of 6 to 14. Its base diameter is 2.36 inch, which can be installed with chip.[Easy to use] It is effortless to use this expansion heart shaft. Each size ring has additional space to accommodate tape to keep the ring without scratches. In order to obtain the correct function, apply one or two tape on the steps to be used. This helps protect the inside of the ring.[Precision adjustable volume regulations] Displaced cardiac shafts provide high -level accuracy when manufacturing ring.[Extreme durability] Our expansion ring core shaft is made of wear -resistant steel. When other materials, such as wood or carbon steel rust or wear, are used in large quantities, these expanders can withstand the test of timeColor: silvermaterial: metalPackage Contents:1 x Ring Stretcher kitOnly 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.