Our bird spikes are an effective and humane way to prevent birds, pigeons, small animals, and even thieves from invading outdoor areas. The spikes are made of high-quality plastic and come in a variety of colors. They are easy to install on any flat surface and can withstand any weather. The spikes are 34cm long, with spikes measuring 3.7cm in length, and can be cut to size. Upgrade design with small spikes to improve effectiveness. Perfect for use on fences, railings, roofs, walls, sheds, ledges, and terraces. Features 1. Upgraded Design: Our bird spikes use the latest design, the length of the spikes is 3.7 cm, and on this basis, small spikes are added, which perfectly prevents small animals from standing on it, and effect is greatly enhanced. 2. Refusal of Foreign Invasion: This bird spike are effective in birds, pigeons, crows and even thieves. We need to reject feces, noise, and this is the most effective method. Compared to other barbed wire, steel spikes or glass shards, this will not cause great harm to small animals or people, and can successfully drive off the invaders. 3. A Variety of Installations: Can use screws, strong zip ties or double sided tape to firmly fix the fence spikes on any flat surface, generally suitable for fences, railings, roofs, walls, sheds, ledges, terraces. 4. Suitable for Any Weather: Bird fence spikes are made of high quality plastic, not easy to deform and twist, and not will corrode and rust, work well in any environment. 5. Nice Size: Each piece length is 34 cm/13 inch, 1.57 inch wide and the spike length is 3.7 cm/1.45 inch. The bird spikes can be cut into flexible segments, used anywhere, and more convenient. Specification Material: PET Color: White, Grey, Green, Black, Brick red, Brown Size: 34 x 4 cm, Spike: 3.7 cm Weight: 670 g Package Include: 12 Bird Spikes(with Strap)