A triangular kiosk with three flags, warns people that the granite floors are very slippery on rainy or snowy days. The Boys" are designed to allow the three to interlock.
The Harris Bank in Chicago, uses "The Boys" to warn of falling ice during the winter.
The Standard Oil Building uses "The Boys" to close off areas being maintained or under construction.
Lettering Specialists, Inc.
8020 N. Lawndale Avenue;
Skokie, IL 60076
Phone: 847-674-3414;
Fax: 847-674-9571
The Sears Tower in Chicago uses several sets of 3 "Boys" to create a triangular kiosk