Blue Mighty Line Floor Tape Ts, 9"x6"x3", pack of 25. These Ts are powerful floor marking tool. The beveled edge and 50 MIL thickness of the floor tape helps to withstand industrial traffic for a warrantied 3 years. The Ts do not leave residue upon removal. The patented floor marking material can be used to mark off areas on your floor. These T shapes help to keep inventory, tools, and workers organized.