Bird/cat spikes are an effective, humane and cost-effective control solution that will not harm birds or cats. By installing the spikes on surfaces where birds like to perch an uninviting barrier is established. Features: Provides an effective deterrent against intruders at a low-cost. Fits to tops of fences, gates, pipes, walls, sills etc. Deterrent against animals such as cats and larger birds whilst being discrete and not ruining those garden views. Made of plastic for added versatility. It can be easily fixed on the top of the fence or brick wall with glue, nails or screws, and can also be used for branches or sheds. Specifications: Material: Plastic Color: Black Quantity: 10Pcs Item Size: 500 * 45 * 17mm / 19.69 * 1.77 * 0.67in Package Weight: 650g / 22.93ounces Package Size: 310 * 140 * 45mm / 12.2 * 5.51 * 1.77in Packing List: 10 * Anti Bird Thorn