Transparent bird gel is a sticky repellent used to prevent birds from landing on horizontal surfaces. Bird gel is applied to areas where birds are landing, birds will not like the sticky sensation on their feet and will move on to a more comfortable spot. Transparent bird gel can be used on indoor or outdoor surfaces where birds are landing and lasts up to six months. Transparent bird gel should never be used on a vertical surface. Transparent bird gel is effective for pigeons, starlings and larger birds. This product should not be used around protected bird species. Recommended for use on ledges, I-beams, parapet walls, signs, conduits, pipes and more. One tube covers 10 ft.