Natural & Synthetic Mixed Stone & Lava Rock Stretch Bracelets, with Iron Beads, Stainless Steel Bead Spacer, Size: about 2 inch(52mm) inner diameter, bead: 3~8.5mm in diameter.âPlease Note: These Gemstone may include Natural Dalmatian Jasper, Blue Spot Jasper, Amazonite, Labradorite, Ruby in Zoisite and so on(as the picture shows). but as it is a mixed product, the stone type is delivered randomly, please refer to the actual product delivered.