Inkviva 1/2 Inch Block Letter 3D Silicone Iron on Transfer Multi-purpose English Characters Set Matt Surface, Solid Texture (Pack of 1, BLACK) The label is made from silicone material. It has SOFT and MALLEABLE texture; Label surface can be heated directly by iron; EASY TO USE (Select and Iron) with Alignment Tool Provided in Package; Line up characters in one step. Quick to iron on (12 sec); Washer / Dryer safe; SIMPLE STEPS: 1. Line up the letters and designs as you want them to appear; 2. Apply a hot iron to the label surface; 3. Admire your work! Neat, Tidy, and Professional Finishing Look