ROCOL FLAWFINDER is a non-destructive inspection system that is designed to provide a fast, reliable method for visual detection of cracks or flaws, which would not normally be visible to the naked eye. Ideal for the inspection of welded joints, castings, forgings, etc. Comprsing 1 each of the following 1 FLAWFINDER Cleaner Spray (300ml). 1 FLAWFINDER Developer Spray (400ml). 1 FLAWFINDER Dye Penetrant (300ml).