Features Wide Application This spring caliper has a very wide range of applications for woodworking, carpentry, metal processing, leather processing, math and more. MULTIFUNCTIONAL This spring caliper is versatile and is perfect for drawing arches, circles, index gauges, dividers, line segments, dimension measurements and more. Excellent Carbon Steel Material This spring saddle is made of excellent carbon steel material, which is sturdy and wear-resistant, not easy to erode, and has a long service life. SLIDE NUT DESIGN This spring caliper features a lockable slide nut, which, in conjunction with the spring tension, allows for quick leg adjustment and repeatable measurements. COMPACT & LIGHTWEIGHT This spring saddle is small and lightweight, making it very convenient to carry and use when you go to work. Specification: Item Type: Spring Caliper with Pen Sleeve APPLICATION Widely used in the field of mechanical scribing and leather making. Material: carbon steel. Specification: approx. 75 mm / 2.95 inches. Extended size: approx. 75 mm / 2.95 inches. Total length: approx. 125 mm / 4.92 inches. Package list: 1 x spring saddle Package List 1 x Spring Caliper