Bird spikes on polycarbonate bar consisting of long, needle-like rods made of stainless steel wire. The polycarbonate base is anti-UV and flexible for mounting on almost all straight, curved or uneven surfaces either stone, wood, zinc, concrete or brick. It is easy to fastening with screws, nails or glue. This type of humane bird spikes just trying to keep the birds from landing and roosting but not designed to hurt them. It is virtually invisible and well integrated with the architectural style.