Check the listing for details. DODOWIN Connectable Contour Gauge with Lock, 20 Inch Profile Duplicator Tool for. Condition: New, Made in United States. Listed at 72.99 USD. Great for installers, carpenters, DIY users and remodel projects. The fine pins help capture detailed shapes more precisely, improving efficiency when tracing irregular objects and edges. 【Locking Design for Accurate Shape Copying】The built-in lock securely holds the traced profile in place after shaping, helping you transfer irregular edges and contours with better consistency.