Easy to use and refillable: cap removes to access the refill, making replacement quick and simple; comfortable design for easy control; tip is designed not to scratch metal; sturdy and hard to break; compact and portable for on the go use. Mechanical pencil performance: marks on oily and moisture prone surfaces with increased durability and resistance to moisture; capable of marking a range of materials including oily, smooth, rough, wet, dry, rusty metals, and cold surfaces. Package contents: includes 1 piece metal maker pen and 12 pieces silver round refills; sufficient quantity for daily use. Built in features and longevity: built in sharpener and clip for easy storage; silver refills are strong and hard to break for long lasting use. Use scenarios In metalworking or maintenance tasks where surfaces may be oily or rusty, this tool provides reliable marking without damaging the surface. For labeling tools, parts, or kits in a workshop or garage, especially in damp or challenging environments. In DIY projects or crafts involving metal, where quick, durable marks are needed on various metal finishes. Key attributes at a glance: metal maker pen construction, includes 12 silver round refills, built in sharpener, clip for storage, capable on oily to dry and rusty metal surfaces, portable and durable.