Amazon.com: SENHAI 3 Pcs Epoxy Resin Ring Mold, Silicone Ring Molds Diamond Jewelry Mold with Round and Rhombic Face Different Sizes Ring Jewelry Resin Casting Mold for Pendants and Crafts Making :
Pocket size with Side Pocket (20mm Krause rings) | Thinkthankay
Amazon.com : Shuokecrafts 2Pcs Ring Binder Mechanism,3 Round Ring, A5 Half Letter Junior Legal Size,20mm Ring Inner Diameter,no boosters,Silver : Office Products
2 new ring sizes added to our Touch Me & Custom Made Ring Organizers! - Blog Vdsshop