Features:* * The height of the upgraded version is 3.5cm. Effective repellent spikes to protect against intruders without causing damage that can effectively repel most types of animals from landing on your ledges and fences (not suitable for squirrels)* The spikes can be easily cut to fit and set on the cross beam under your patio roof, place these bird spikes and screw them in with screws, or secure the strips with strong ties/glue* These spike defender has 4 flexible separate segments, you can freely cut the length to your desired location such as fence, railing, roof, shed, walls, doors, edge, etc.* Made of plastic, the spikes are also weather resistant and non-corrosive unlike the spikes metal bird* Set of 1 strips of spikes, if you are not satisfied for any reason, please let us know and our customer service team will help you solve the problem* The height of the upgraded version of the bird spikes is 3.5 cm, which further increases resistanceHow to use: Easy installation with glue, screws or tied with zippersBird spikes are an effective, humane and cost-effective control solution that will not harm birds. By installing spikes on surfaces where birds like to feed, an uninviting barrier is establishedSpecifications:* Color: brown, transparent, black, white* Strap size: as the picture shows* Total length: 40CM* Material: high-quality plasticPackage contents:1 pc. Defenders of the spikeNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.