Material: stainless steel
The sizes you can customize is the ring's inner diameter,its width,its height.
However,because of the material limitation,the total of inner diameter+width*2 can't over 75mm(means outer diameter can't over 75mm).For exmaple,inner diameter 35mm,witdth 20mm,doesn't over 75mm totally,it can be made.But inner diameter 38mm,width 20mm,total 78mm,over 75mm,it can't be made at this price.
Bigger ring making is possible,if you need bigger ring with OD over 75mm ,you can contact for quotation,