catchmaster gold stick sticky fly trap indoor / outdoor - 10.5 inches tall - non-toxic fly bait included - pack of 4 fly traps catchmaster catchmaster gold sticks are long tubes with a sticky glue and fly pheromone attractant for capturing and killing house flies and other nuisance flies. the color itself, gold is a reflective property. the reflective properties of the shiny metallic surface which causes an "open window of light" effect placement of gold stick fly traps their square end caps allow you to lay it on or stand it behind, beside or under food processing equipment or hang it either horizontally or vertically by means of it's end hooks. these fly traps can be placed on window sills or hung vertically in areas of fly activity. they can be used in garages, homes, offices, barns and stables, dumpsters, etc.