Features: This sanding pen includes seven interchangeable grinding heads for precise and versatile sanding, tackling tasks from fine engraving to large scale polishing with ease. Constructed from aluminum alloy, it offer light weight durability and an ergonomic grip that ensures comfortable handling, minimizing fatigue during extended operations. Designed for DIYer enthusiasts and professional technicians, it supports users who require detailed craftsmanship in hobbies or industrial work environments. Versatile for sanding wood, metal, plastic, and other materials, this tool is suitable for home workshops and professional settings, solving multi materials processing challenges efficiently. Its compact, integrated design allows for convenient portability and storage, making it a companion for craftman or those working across multiple locations. Specifications: Component:Aluminum Alloy Quantity:1Set,2Set Package Includes: 1Set or 2Set Engraving Pen ( 1Piece Engraving Pen + 7Pcs Grinding Head ) note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.