Jet Black Hotfix | Wholesale | RhinestonesHigh quality flatback glass rhinestones. Material: Glass Rhinestones Style: Flatback Applying Method: Hotfix Notes and Disclaimers *All stones are packaged by weight therefore the actual stone count can vary per bag* *Rhinestones are created from color lots. Slight differences in time, temperature, humidity, and other factors can result in different shades of the same color. We work closely with our manufacturers to keep our colors consistent.