Made of stainless steel with polished and rust-free hardware, this caliper set is sturdy, durable, and built for long-term use. The smooth surface and edges are free of burrs for safe handling. Inside calipers offer the same size range as outside calipers. The firm joint design uses friction to keep the legs securely in place. Features: - Color: Silver - Material: Steel - Size: 20.00 x 1.50 x 0.50 cm / 7.86 x 0.59 x 0.20 in - Steel construction with hardened, finely polished tips for enhanced strength and durability - Inside calipers measure hole diameters and distances between surfaces - Outside calipers measure thicknesses and external diameters of objects - Lightweight and easy to handle, ideal for transferring measurements from model to clay for both internal and external dimensions - Suitable for measuring hard-to-reach internal and external dimensions, such as in sculpture, pottery, and tubing Packing list: 2 x Calipers