Motion Pro is dedicated to producing the most versatile, unique and durable products for professional and home use. Motion Pro tools are designed to be simple to use, yet durable enough to withstand the harshest conditions. One of their goals is to offer tools of convenience. Do it right the first time with Motion Pro Tools. Easily cleans most fuel injectors. Will flush and back flush injectors for best possible cleaning process. No compressed air required. Requires aerosol can of fuel injection cleaner (not included). Push-button switch to turn fuel injector on with LED battery condition indicator light. Durable anodized billet aluminum construction. Built tough for everyday shop use. 9-volt battery included. Replacement pigtails available (sold separately). Patent pending.