Scuba Dive Articles

I need articles written on scuba dive equipment. Each article should include a description, how they work or what is the use, explain different types (open heel fins/full foot fins), how to wear or sizing, care and maintenance. There should be a general introduction to scuba gear and then an article for each bellow: Masks Snorkels Fins Wetsuits Regulators BCD's Tanks Dive Computer I also need an article on the different dive certification agencies(PADI, NAUI, etc..) Here are the specs: 1. Minimum of 500 words per article 2. Minimum of 5 paragraphs (as described above) 3. SEO using effective keywords 4. Proof read your work and fix errors 5. Must be original and pass Copyscape. I will take care of getting the photos needed for the articles such as diagrams.