This listing is for a box of twelve (12) green Plastigauge sticks made by MAHLE/Clevite. P/N (12) MPG-1. The green Plastigauge measures bearing clearances from 0.001" to 0.003" / .025 mm to .076 mm. Each package has a measuring scale printed in inches and millimeters. Strips are color coded for easy size identification and are soluble in oil. Image shown is of actual product.