Osmose Guy Markers offer long-lasting, highly visible protection for guy wires. The addition of special additives helps retard UV light degradation allowing the bright yellow color to resist fading. Material quality and generous wall thickness (0.80 in.) help Osmose Guy Markers resist both cracking and shattering even under severe conditions. They are available in three sizes: 1 1/8 ". X 8', 1 3/8" X 8', and 2 1/2" X 8'.