Product Name - Mica Insulator
Fit for Package - TO-220 Transistor
Material - Mica
Total Size - 13 x 18 x 0.1mm
Color - Clear
Hole Diameter (Each) - 3mm / 0.12"

Package Included:
100PCS TO-220 Insulation Pad Sheet Mica Insulator pads-thermal insulation pad with hole