Jacobi Jayne Butterfly Window Alert

Stop birds flying into windows and injuring themselves with this ingenious solution; the decorative leaf decal reflects the ultraviolet light which we can't see but creates a bright glowing warning that birds can see. This will reduce the risk of birds flying into windows. The Jacobi Jayne Butterfly Window Alert decals are particularly great for glass conservatories to break up the line of sight of birds and let them know their is a see through structure there. The pack of four decals are applied to windows without adhesive - just make sure that the surface they are to be applied to is clean prior to application. Each sticker measures approx: 12.5 cm x 10 cm.