4 Sizes: The blank ring setting with square tray have 4 sizes option, 10mm, 15mm, 18mm, and 20mm. Coordinate glass square cabochons are included. Each size have 2 colors, golden and stainless steel color. Standard 1/4 is suitable for everyone. Package Include: You can get 8Pcs blank ring settings, and 8pcs glass cabochons, all packed in a box, easy for you to carry around. Sufficient quantity can meet your jewelry making needs. Best Material: Finger ring trays are made of quality stainless steel material, durable for use, not easy fade, long service life. The clear cabochons are made of glass, highly transparent, with good gloss. Easy to Use: The finger ring trays comes with transparent cabochons. You can paste cute patter or epoxy resin on the tray. Next you just need put the transparent cabochons on the tray. You get Beautiful and personality ring easily! DIY Gift: DIY some unique and lovely rings, make it to them as a gifts on Valentine's Day and Christmas. It can fully show your care and love to the people you loved. They are sure to love and appreciate your rings.