Features • Precision Circle Drawing: This Adjustable Circle Drawing Tool allows you to create accurate and precise circles effortlessly, making it ideal for woodworking and crafting projects • Durable Stainless Steel Design: Constructed from high-quality stainless steel, this Circular Drawing Tool offers excellent resistance to wear and tear, ensuring longevity and reliability • Versatile Measurement Capabilities: Easily adjust the circumference for various sizes, perfect for drawing circles and arcs in multiple applications, from engineering to art • User-Friendly Operation: The intuitive design enables quick adjustments and smooth operation, making it suitable for both professionals and DIY enthusiasts alike • Compact and Portable: Lightweight and easy to carry, this tool is perfect for on-the-go projects, ensuring you can create perfect circles wherever you need Features: 1、Good Reflection: The optical glass ensures high accuracy in the measurement, which will also improve the clearn and reflection of the prism. 2、Wide in Utility: Having been installed on total station, the mini prism can be used for the testing of tunnel, engineering, mine, dam, road an so on. 3、Standard Design: Comes with 25.4mm effective diameter, the total station mini prism also has + 2mm constant for reliable working performance. 4、Great Materials: Consisting of premium optical glass and ABS materials, the survey prism tool is not likely to break, very for long use. 5、Easy to Install: Light in weight and compact in size as well, the 45 degree prism accory is very convenient to install within several minutes. Specification: Item Type: Total Station Prism Material: Optical glass, ABS. Constant: Approx. + 2mm / 0.08in Effective Diameter: Approx. 25.4mm / 1in Use: Install on total station for engineering and tunnel measurement. Package List: 1 x Total Station Prism Package List 1 x Total Station Prism