1206 package SMD resistor assorted folder 170 value x 50pcs chip complete resistor booklet 1206 SMD resistor assorted folder 170 value x 50pcs chip resistor booklet, electronic component Surface Mount 1206 Resistor and Capacitor Sample Book Resistors:YAGEO muRata 1206 serial resistor. 170 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.