Two (2) available, 5" clear poly cone with butyl surround, Part# 490355, Very popular Infinity midrange used in RS series, Can use to replace #902-0632, #902-0470, Excellent condition, pulled from working set of RSb. (Good replacement for this midrange is Dayton Audio RS52AN-8 2" dome - Interchanges very well-( Also refers to invoice #51313 and 58720) Contact us for excellent modification, Condition #9