Effective: safe protection thanks to 4-row bird spikes against birds on window sills, beams, awnings and skylights. Total length 300 cm: the set consists of 12 elements with a length of 25 cm. Rust-resistant - The pigeon picks are made of stainless steel and are therefore rust-resistant, the base plate is made of transparent polycarbonate and is UV-resistant . Anti-rust: the pigeon picks are made of stainless steel and are therefore rustproof, the base plate is made of transparent polycarbonate and is UV resistant. Easy to install: the spikes can be attached with nails, screws or mounting glue. The individual elements can be connected to each other without tools thanks to the click closure at the ends.