Size: A4 length (8.3 x 11.7 inches (210 x 297 mm), 1000 sheets per box. OBC compatible software includes Account Service 2000, Business Enforcement 2000, Reserve 2000, Account Service 2000 Taiko Drum [Personal Edition], Account Service 98, Commerce Votive 98, Reservoir 98, Account Enforcement Taiko Drum [Personal Edition] for Windows 95/NT, Account Ensement for Windows Accounting for Windows [ Corporate Edition, Account Account for Windows (Personal Edition), Account Service Ver.II