Features: Comparable to comp-cams part #7702-1. Pushrod length checkers are crafted from a steel alloy-with black oxide-coating for years of accurate measurements. They are easy to read and eliminate the need for expensive calipers. Having the correct pushrods in your engine is a critical-factor in proper rocker-arm-geometry, and this is the best tool to measure pushrod length (it reads like a micrometer). Individual length checker adjustable-range is 6.8in to 7.8in. Specifications: Material: Iron Size: As Picture Shown Color:Black Package Includes: 1x Pushrod Length Checker note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.