About us: We offer 100% customer satisfaction. We fully stand behind with all the items that we are selling! Please check our stores for other car and truck parts. Please leave us positive feedback if you are satisfied with the item. But in case you aren’t satisfied the item, please kindly let us know, we will try our best to solve it. Thank you for reading. Product: Injector shaft seat cleaning set.Enables efficient cleaning of injector shafts,Injector bores in cylinder heads and injector seats The automotive fuel injector cleaner set, easily cleaning fuel injectors. Fuel injector DIY cleaning tool set made of metal parts, high performance and to use. .