The Bird B Gone Envirospike Plastic Bird Spikes are low-profile bird spikes used to deter seagulls, pigeons, and other birds similar in size from sitting or roosting in the target area. Made of sturdy, UV-stabilized plastic, these bird spikes are sturdy enough to withstand any damage from birds interacting with it. This product is easy to install and is ready to use.  The spikes can be glued, tied down, or screwed in place.  Designed for use in areas such as rooftops, walls, light fixtures, windowsills, and ledges.  Available in 10 ft. and 50 ft. lengths.