100 Pc Fly-Lid Fly Trap Counter Display EFFECTIVE AND VERSATILE! Catch flies indoors and outside! The Fly-Lid will catch flies wherever they are a problem, whether it's your kitchen or your barn! Catches fruit flies, house flies, black flies, and many more! PATENTED AND MADE IN USA! Patented tiered design allows the Fly-Lid to fit most disposable cups as well as cups and glasses you have around the house! It was designed, manufactured and packaged in the US.