Blackburn Flags and Marking Products offers a line of color saturated flagging tape for use in greenhouses and planting beds. Nine standard colors are available in 300 feet rolls; seven fluorescent colors on 150 foot rolls. They are 3 mil plastic and 1 3/16 inches wide. The 16 colors are also available as 4 mil on 1 inch wide, 1,000 foot rolls in easy-to-use dispensing boxes. Blackburn flagging tape is offered along with plain and custom printed marking flags, rigid markers, lead-free inverted paint and chalk and more.