Luminescent blue opalite spheres. Opalite is man made glass bead, often referred to as sea glass. It can sometimes be confused with blue moonstone. If light shines through it amber, it's opalite, as in the photos.
I carefully select all the stones at Sleepy Buddha for beauty, quality of cut, and color. I make no claims about healing properties or other mental benefits of the stones. Enjoy them as you would any other beautiful object that focuses your mind.