These gemstone spheres are compatible with my rollerball vial necklaces. They fit bottles sized 1ml, 2ml and 3ml. I sand down the inside of the plastic for the sphere to fit nicely in so it will roll smooth.
Please review measurements because pictures may appear smaller or larger then actual size.
-8mm sphere natural gemstone
-This listing includes the plastic piece that the sphere goes in.
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*Items are handmade so expect some small variations from the pictures
*Handcrafted in the USA
***Buy with complete confidence. I do everything I can to make shopping simple and try to meet your needs