This is the replacement EL-60 glue boards for the Gardner GT-200, WS-85, WS-95 and various other manufacturers Wall Sconce fly light traps. Each board is white. Traps flies and other insects discreetly, instead of the typical loud buzzing and popping sounds, bugs are collected quietly on the included non-toxic 4" x 17" sticky glue board. 1 pack of 10 glue boards. Glue boards should be changed every 30-60 days. Glue boards may need to be changed more often in high infestation areas. Flying insects are attracted to the ultraviolet light and captured on a replaceable adhesive sticky glue board inside the sconce. Great for use in bars, restaurants, office spaces, bakeries, delis, supermarkets and other commercial/retail environments. Made in the USA - Gardner has been a trusted USA manufacturer since 1928 recommended and approved by health inspectors.