3 sizes: There are 3 sizes of beads, size about 5x2mm/6x2mm/8x3mm, hole: 2mm, 20pcs of each size 60pcs in total, quantity to meet your daily crafting needs. Material: These beads are made of high quality 304 stainless steel, strong and durable, will not break or fade easily. You can use them for a long time without maintenance. Spacer beads: These beads can be used to keep the multiple strands of a necklace or bracelet aligned. Interspersing these beads not only serves as a decorative spacer, but also reduces friction on the contact surfaces. Fun to make: through the handmade plus unique creativity, these beads will be assembled with work to create a unique jewelry, the production process is simple and fun. Application: Spacer beads play an important role in jewelry making, used for spacing, positioning, plugging and damage prevention. Suitable for European bracelets, pendants, earrings, necklaces, anklets, charms, key chains, sweater chains, cell phones, home decorations, etc.