Stronghold PCMB-2 Pre-Printed Wire Marker Books Are Conveniently Pocket-Sized and Contain Wire Labels Printed On Vinyl Cloth. Markers Are Durable Enough For Up to 5 Years and Are Designed to Withstand Various Outdoor Environments. They Can Also Be Torn In Half to Label Each End Of The Conductor. Legend: A-Z, 1-15, +, -, /, 10 Markers Per Legend, and 10 Pages Per Book.