Brand: General ToolsFeatures: CALIPER: Handy tool for plumbers, electricians, jewelers and do it yourselfers for making quick, accurate inside, outside and diameter measurements. DURABLE: Constructed of non-magnetic brushed brass with a lacquer finish for durability. TWO SCALES: One tool provides measurements in both mm and 1/16" for greater flexibility. LONG LIFE: The measurements are etched and filled so they won't wear off. COMPACT SIZE: This caliper has a 4" measuring capacity inside and outside yet is pocket sized, lightweight and easy to carry. GENERAL TOOLS: We're a recognized leader in designing and developing specialized precision tools dedicated to delivering exceptional customer service. We encourage artisans and DIYers to work smarter, measure better, and repair more productively. Binding: Tools & Home Improvementmodel number: 133MEPart Number: 133MEEAN: 0038728441386Package Dimensions: 8.6 x 2.8 x 0.3 inches