Write descriptions for Ecom site

Hello, I need someone to write 4 - 5 sentence descriptions for baby and kid related items on an ecommerce site. Descriptions need to be original, perfect english and written with seo in mind however no keyword stuffing. You'll be given a spreadsheet with the item# where you'll paste this into the site's search and see the image of the product and basic info, size, what comes with it, etc. Descriptions need to be in the same spreadsheet in a new column to the right of the item #. In another column you'll need to type what color group the item belongs to, for example, blue, pink, purple, green, etc. There's about a dozen colors to pick from. This project is for 500 items, however I need this done for approximately 15,000 products so if you do a good job you'll have the opportunity to do the rest over the coming months. Let me know if you have any questions. Thanks