Waterproof Permanent Paint Marker Pen for Car Tire Tread, Rubber, Metal, and Wood Package Includes: 1-12 Pieces of Paint Markers Product Features: Brand new and of high quality. Provides a smooth, durable, and easy writing experience. Suitable for all types of tires. Works on various surfaces including rubber, metal, wood, glass, plastic, cardboard, and paper. Oily ink ensures brightness and long-lasting color. Item size: 143mm15mm (LengthDiameter) Written line: 2.2-2.8mm Ink content: 8g Usage Tips: Before use, shake the pen body up and down several times to ensure even ink mixing. Open the lid, hold the pen upright with the nib facing up, and press the nib with your hand for about 3-4 seconds. Press the nib down several times until the ink begins to flow. Use the ink completely before pressing again. After writing, always cover the cap to prevent ink evaporation. Keep the product away from fire. Note: Please allow slight differences in dimensions due to manual measurement. Due to the shooting angle and display, the actual product may vary in color from the picture. We appreciate your understanding. For return inquiries or questions about orders please email us at [email protected] or message us directly.