Empire Level 2783 Brass Pocket Caliper From the Manufacturer This pocket caliper makes quick accurate inside, outside and diameter measurements. This caliper has a brass body and slide, 4-16-Inch long. Reads inside and outside measurements. Decimal equivalents. 4-Inch capacity. Graduations in 32nds and mm. Inexpensive but of rugged construction. Features Brass body and slide, 4-9/16-Inch long 4-Inch/100mm capacity by 32nds and mm Reads inside and outside measurements USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.