Things you can do here:
1. Ask a Question
2. View ALL Questions
There's no specific number of words you should have on your page. If you can thoroughly describe your product or service in 4 sentences, that's all you need. The idea is to provide the search engines with enough information on your product so that it can understand your theme/topic. You also want to make sure the information is unique and useful. The more unique, the more useful, the more like you are to win over the search engines love and authority.