This is a professional-grade dental instrument: an Iwanson-style crown gauge and caliper. Made by Precise Canada from high-quality stainless steel, it's used in dental labs and practices for precisely measuring tooth preparations, crown thickness, and other critical dimensions. The silver-colored tool is brand new, made in Pakistan. It's essential for ensuring dental restorations fit perfectly. Whether you're a dental technician, a student, or a practicing dentist, having accurate measuring tools is non-negotiable. This caliper is durable, easy to clean, and provides reliable measurements. A fundamental tool for quality control in any dental lab. Invest in precision for better patient outcomes. A simple, timeless design that gets the job done right, every time.