Features: 3 sizes for your option: 4-inch/8-inch/10-inch. Accurate Measurements: Our stainless steel caliper delivers precise measurements every time-, making it an essential- tool for any DIY or professional project. Durable and Rust-Resistant: Made- from high-quality stainless steel, this caliper is built- to last and resist rust and corrosion, 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 precision- and accuracy. Versatile Use: Great for you to measure the internal dimension of an object, such as sculpture, potter-, clay, tube, hole and so on-. Specifications: Material: stainless steel Whole length: approx 20cm/38.6cm/49cm(optional) Size: 4-inch/8-inch/10-inch(optional) Note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Inside Caliper