Printed color charts never precisely duplicate the effects you will achieve using our enamel products. This is particularly tru for transparents where background color and thickness of application strongly influence final results. In order to help you select the color you really want. Each packet is approximately a teaspoon per sample color. Quantity may vary. SAMP-G: Is a complete Pallet of Enamels for Effetre Glass in 80 Mesh (46 colors, 9000 series). Coefficient of expansion: 104 linear expansion.