Our B-500 repositionable vinyl cloth Porta-Pack books are a convenient way to ensure the wire markers you need are always on hand;Choose from 15 different books featuring numbers, letters, special symbols and NEMA colors;Each book comes with 10 pages and includes a terminal marker with each wire marker;Over 250 different refill packs are also available (sold separately);Brady B-500 has good oil and water resistance and good print durability, It also has excellent flexibility for wrapping around curved surfaces