For jewelry making, these ring blanks feature flat trays that are ideal for holding cabochons, resin, or other decorative elements. The adjustable design ensures a comfortable fit for any finger size, making them a versatile addition to your crafting supplies. Use these bases to create rings that and craftsmanship. Features - Color: Silver -Material:Stainless steel - Size: 1.90X1.90X1.00cm/0.75X0.75X0.39in - Size: 1.90X1.90X0.80cm/0.75X0.75X0.31in - Size: 1.90X1.90X0.60cm/0.75X0.75X0.24in -Material: made from durable stainless steel, these ring blanks are built to withstand daily wear and tear, ensuring use -Adjustable design: the adjustable feature allows these ring bases to fit various finger sizes, providing a comfortable and for everyone -For: these blank ring trays are ideal for adding your own decorations, such as cabochons, photos, or resin, to create unique jewelry pieces -Wide application: suitable for various diy projects, these ring bases can be used to make rings, pendants, or other accessories -Generous quantity: with pieces included, this set provides plenty of supplies for multiple jewelry making projects, making it for both hobbyists and professionals Package list: 150 x blank rings base