【Package】20 bird spikes, single bird spikes specification: 285*40*34mm, weight: 41g, total length: 19.7FT. Each bar nail has 3 detachable sections, each 4 inches long and 1.57 inches wide.You can choose the length according to your needs 【Upgraded design】Small spikes are designed under the long spikes of the outdoor bird repellent so that birds cannot effectively stand in the gaps of the bird nails. It effectively prevents small animals and birds from staying or walking on the fence roof and leaving bird droppings, protecting the environment and having a good deterrent effect 【High-quality materials】Made of high-quality acrylic plastic, the bird spikes will not rust or deform and can be used for a long time（Improvement: Discover tree branches and clean them up in a timely manner to prevent birds from building nests） 【Flexible Installation】Can be fixed to fences, roofs, gutters, sheds, ledges, patios using nails/screws, double-sided tape and strong zip ties. Acts as a bird stinger deterrent to other reptiles and birds 【Purpose】Mainly acts as a deterrent to birds and other reptiles, but is not harmful to them. At the same time, if you find any problems, please feel free to contact us, we will reply and solve them within 24 hours This product is a plastic product. The product has spikes in its shape and is mainly used to prevent birds, squirrels, raccoons and other animals from staying in fences, walls, fences and other places to damage the environment without harming the animals.