Description 15 pre-filled Ornaway Bird Gel dishes Optical and olfactory bird repellent gel for protecting structures from infesting birds Ornaway Bird Gel reacts with ultraviolet light to give the effect of flames to the birds Birds see the light output from the gel and avoid the areaQuick, clean and easy to install Simply glue down the dish using Silirub N adhesive and peel off the protective film Rainwater gutter clips can be used to mount the dishes to protect gutters