Description:Material: Oil penSize: 13.8cm/5.43inchColor: Black/Red/Blue/WhiteFeature:1. Extra long pen tip: The pen tip is longer than a regular marker and can be used to mark deep holes or narrow spaces, making it suitable for use in deep holes such as pipelines and mechanical parts.2. Strong durability material: The pen tip is made of wear-resistant and pressure resistant materials, which can maintain its shape and function after multiple uses, making it suitable for use on rough or hard surfaces.3. High visibility ink: The ink color is bright, ensuring that the mark can be clearly visible even in deep holes or dark places.4. Quick drying ink: The ink dries quickly, reducing the blurring or peeling of marks due to friction or contact, and is suitable for use in scenarios that require quick operation.5. Wide applicability: Suitable for various material surfaces, suitable for use in industries, maintenance, construction, and other fields.Attention:1.Due to manual measurement, there may be a 1-3mm error in product dimensions.2.The color of the product may have errors due to objective reasons, and the actual product is the main focus.The product includes:1 * deep hole long head marker pen