Revenge No Escape Window Fly CatchersProduct Description Revenge No Escape Window Fly Catchers Ingredients Key Features Catch flies, gnats, bees, mosquitoes, fruit flies, beetles, and any other flying insect that lands on the window For use on windows, in cabins, campers, dorm rooms, etc One side has an adhesive that does not leave a residue and attaches to the window itself 4 pack with total of 24 disc's Made in the usa