StrongHold PCMB-1 Pre-Printed Wire Marker Books are conveniently pocket-sized, containing wire labels printed on vinyl cloth. Markers are durable enough for up to 5 years outdoor UV Resistance, oil and abrasions. They can also be torn in half to label each end of the conductor. The legend includes 0-9, 45, there are 45 markers per legend, and 10 pages per book.