Marathon's Vernier Caliper, a precision tool designed for scientific and engineering applications. This dual-unit caliper, featuring both imperial (inches) and metric (centimeters) measurements, offers versatility for various industries, including electronics, carpentry, metalworking, and even watch design. Its lightweight yet durable construction, reinforced with a metal support rod, ensures accurate and reliable measurements within the 0-6 inch (0-150 mm) scale range.