This is semi-manufactured goods made of lumpish agate.It has smooth surface and luster.The size of the semi-manufactured agate beads is 10mm, which is good for you to design your ideal necklaces.The length of the strand is 16 inches .You can use these agates to make all kinds of necklaces, bracelets, earrings.You can also make other accessories with it.After all,our jyxpearl company always offers the best things.You are wise to choose our products.