Arrow Tape, Color Black/Gray, Width 4", Length 108 ft., Material Polyethylene, Markers per Card 486, Standards ASME (ANSI) A13.1 - 2007Features - Markers per Card - 486 Standards - ASME (ANSI) A13.1 - 2007WARNING:California ResidentsThis product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. California proposition 65 warning