Presco Wire Flags – 4″ x 5″ Flag on 24″ Staff – Yellow (Pack of 100) Presco 4″ x 5″ wire flags on 24″ staff provide a dependable marking solution for surveying, construction layout, and utility locating applications . The durable flag and wire staff combination ensures visibility and ease of placement on site. Often specified as yellow wire marking flags (4 inch x 5 inch on 24 inch staff) or utility marking flags, these align with APWA utility color guidelines referenced by 811 Before You Dig , where yellow indicates gas, oil, steam, petroleum, or gaseous materials . Key Features • 4″ x 5″ flag size on 24″ wire staff • Durable weather-resistant flag material • Rigid steel wire for easy ground placement • High-visibility colour for site marking • Supplied in bundles of 100 flags