A. 12-Color Paint Markers - Environmentally Friendly, Permanently Waterproof, and Quick-Drying Oil Painting Markers, Suitable for Tire and Car Graffiti B. 1. Applicable Surfaces: Can be used on various types of surfaces, such as steel, rubber, wood, plastic, glass, paper, textiles, cardboard, tiles, etc. 2. Color Options: There are 12 different colors available for selection. 3. Usage Method: Shake well before use and press the nib to activate the pigment flow. 4. Ink Characteristics: The markers use waterproof and quick-drying ink that is resistant to fading and wear. 5. Nib Design: Round fiber nib. C. Specification Parameters 1. Pen Body Length: 14.3 cm 2. Ink Capacity: 8 grams 3. Stroke Thickness: 2.2 - 2.8 mm D. Package Contents: 1 pen E. Precautions 1. Due to differences between different monitors, the pictures may not accurately represent the actual color of the product. 2. Due to manual measurement, a size error of 1 - 3 cm is acceptable. 3. If there is an issue with the product, please leave a message before giving a negative review. Thank you for your understanding.