I tried McMaster-Carr, (they sell just about everything) but they only had it in 6' lengths.
"...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail." - Wm. Phelps Eno, ca. 1928
"I'm searching for the questions, so my answers will make sense." - Stephen Brust
Note: I am not endorsing any of these companies. I've only dealt with Jamar, and we haven't had to buy anything since I took over ther traffic group here.
"...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail." - Wm. Phelps Eno, ca. 1928
"I'm searching for the questions, so my answers will make sense." - Stephen Brust