Respuesta :
No comma after walls. Redundant sentences I would combine 2 sentences and say “it’s cost effective and available at your local supermarket”. Hope that helps
The advertisement needs revision in the addition of adjectives and adverbs, the words used are not attractive to the reader or audience, the advertisement should include words as “special for all surfaces”, “no damage guarantee”, “Mr. Sparkle price is affordable”, “The product is safe in all surfaces”, among other that can be selected to make the product desirable for the buyer.