Tapes are 10.5 inch reels. 20 total tapes: "E 517- Drug Delivery System." 466 PCValve Positions," "E 437- Non-Isotopic mmm," "M001 Defense Lead Mailing,". IR + D" "Manual Valves Point Foreign" "Foreign Report Guyers C Switich" "Volatile Organic Compounds" " Paitent Drug Compliance" "2425 Notso Sislm" "2372" "E462 Exp Cutting" "E484 Not Sorted" "E1496 Foreign" "E478 Fire Retand" "Pulp & Paper Chemicals" "2093 Orthopedic Implants" "FLM86CI" "Flat Panel Displays". All tapes still have the write rings installed.