Presco Taffeta Flagging Tape – 1″ x 300′ – Blue (Pack of 12) Presco 1″ x 300′ Taffeta flagging tape is designed for surveying, construction, forestry, and general marking applications . The durable PVC construction offers consistent performance with good visibility and handling in the field. Often specified as blue survey flagging tape (1 inch x 300 ft) or marking ribbon for utility locating, this tape aligns with APWA utility color guidelines referenced by 811 Before You Dig , where blue indicates potable water lines . Key Features • 1″ x 300′ roll size (standard colours) • Durable Taffeta PVC construction • Non-adhesive for easy application and removal • High-visibility colour for field marking • Supplied in packs of 12 rolls