Zero In® Ultra Power XL Sticky Fly Roll ensures effective, poison-free fly control year-round. The double-sided sticky Fly Roll features printed fly images and is coated with high-tack adhesive to attract and trap flies by the thousand. Hang the XL Sticky Fly Roll wherever flies are a problem. Ideal for use in barns, outbuildings and other areas susceptible to fly infestations. Massive 50,000cm² catch area. Use in indoor and covered areas.