Mermaid Tears are glass 3D flat back dome design stone. 
All Mermaid tears consist of approx. 1440 mixed size stones (SS6-SS20) 

***All Blinging Bluebird rhinestones are made from premium quality glass and apply via liquid adhesive (Non-Hot Fix)

****All Rhinestones are packaged via weight, as such exact stone count can slightly vary by a few stones.