3 sizes for your option: 4-inch / 8-inch / 10-inch Versatile Use: Great for you to measure the internal dimension of an object, such as sculpture,, clay, tube, hole and so on and Rust-Resistant: Made from stainless steel, this caliper is built to last and resist rust and, ensuring its longevity and accuracy Ideal for Craftsmen and Hobbyists: Whether you ' re a woodworker, machinist, or jewelry maker, this caliper is perfect for measuring small objects with and accuracy Accurate Measurements: Our stainless steel caliper delivers precise measurements every time, making it an essential tool for any or professional project, Manufacturer: NUEAYMS