This is a woodworking compass scriber, an adjustable tool designed for high-precision circular drawing and line marking. Constructed from a durable aluminum alloy with a CNC-anodized red finish, it features a sliding arm with laser-etched metric and imperial scales for clear, accurate measurements. Users can easily set a specific radius and secure it using the locking knobs, making it an essential layout tool for carpenters and DIY enthusiasts to create consistent arcs, full circles, or find the center of a workpiece.