Smd Component Assorted Folder C0603 90 Value Total Chip Capacitor Booklet (4500 Piece) 0603 SMD capacitor assorted folder 90 value total 4500 pcs chip capacitor booklet Surface Mount 0603 Capacitor Sample Book Capacitor: SAMSUNG/YAGEO chip capacitor 90 value 50pcs each value When components are used up, the book itself could still be reused for your other components. This kit is specially designed to keep surface mount components. It looks like a book, so we call it a sample book.