Sales and product sheets provide a great opportunity to describe in deep detail and specifics the products or services you are offering.  They allow you to address specific aspects of that product or service that customers and clients will need to know when considering buying.  For product sheets, these can be a necessity in spelling out all of the features and customization available for each product.

Use these also as another opportunity to provide a branded image of your company that provides a consistent visual image across all marketing and sales materials.