1. Effective protection: Bird repellent nails can prevent birds, squirrels, raccoons, cats and other animals from breaking into your garden, causing excrement in your garden, damaging plants, etc. You can also use these nails in aquarium installations, which will prevent cats and birds from harming your fish. On the other hand, pigeon deterrents can also prevent thieves from entering your home and are a good anti-theft product 2. Material: The control spikes are made of high-quality materials, which is corrosion-resistant. Compared to plastic pegs, pigeon pegs are stronger and more effective at keeping birds out of your and house. 3. Easy to install: The anti-bird has preset holes on the base and can be fixed with nails, tape and adhesive. It only takes a few simple steps to install successfully, saving time and effort. 4. Foldable and bendable material meets all your needs, whether it is a triangular roof, square or round, Bird Nails can meet your needs 5. is a safe, effective and humane solution that will not harm birds size: The maximum angle size after combination is 25 x 11.5 x 8cm Material: Plastic + stainless steel colour: silver+transparent Package Contents: 12 x bird repellent thorn(NEED self-assembly) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.