Glow-Line Tape, Transparent and FluorescentOmnigrid Glow Line Tape is a transparent fluorescent tape for highlighting lines and shapes on rulers; use it to highlight measurements used repeatedly during a project or to create project specific angles on a ruler. Item Number: 2102 Glow Line Tape is low tack and easy to use it won't leave residue on your ruler so it's easy to apply and remove from rulers You can use Glow Line Tape either underneath or on top of InvisiGrip It's great for beginners