Robinair 92001 Automatic Transmission Fluid Diagnostic Test Pads - 100 Pads Automatic Transmission Fluid Diagnostic Pads Easy, quick way to test automatic transmission fluid to determine when service is necessary Simply place a few drops of transmission fluid from transmission dipstick onto test pad - pad will change color indicating condition of transmission fluid Includes fluid diagnostic chart and plastic clamshell storage box Package contains 100 disposable pads