This kit consists of fine-grained diamond abrasives for marble and polishing powder, in the form of granules, to obtain a mirror polish. The product is formulated to manually restore the shine of marble compromised by light corrosion. Being a reduced version of the standard Virginia Fast kit, it is not able to eliminate scratches or corrosion that are too rough and deep. It is suitable for small interventions (max 2 m2). Even a single stain can be eliminated without necessarily having to act on the entire surface. It works perfectly only on very carbonate stones (with calcium carbonate mineral content greater than 80%). Recommendations: in the event of an unsatisfactory result, it is advisable to repeat all the work again following the prescribed phases more scrupulously. Yields: the duration of diamond abrasives is conspicuous (several square metres). The polishing granules have a yield of 2-3 m2 for each 100 gram sachet. Warning: the granules (similar to small stones) must be rubbed mixed with water on the marble so as to allow the slow release of the polishing chemical principle. They are soft crystals and are absolutely unable to scratch the surface.