The Matco Tools Master Compression Gauge Test Set is a high-quality diagnostic tool designed for automotive use. This set includes a compression tester with a pressure release button, making it convenient for technicians to accurately measure engine compression. The set comes in its original case, ensuring it stays organized and protected when not in use. This product is a reliable tool for mechanics looking to accurately diagnose and repair engine issues. As stated in the about info most items are found through either storage auctions,estate sales or clean outs. Therefore I can not guarantee they are pet free or smoke free.
