They provide detailed description of product specification to help customers select products that better meet their needs. (jobdescriptionandresumeexamples.com)
Usually they have glass bottles of herbal formulas on display, as well as a sign with descriptions of the products. (mindbodygreen.com)
Field sales representatives, in fulfilling their role provide elaborate description of product features / qualities to customers, highlighting the benefits of available features. (jobdescriptionandresumeexamples.com)