Pigeon guard with spikes Stainless steel pigeon spikes to defend against pigeons perching. Install on concrete, marble, wood,,, Pigeon guard with spikes1)Stainless steel pigeon spikes to defend against pigeons perching.2) Install on concrete, marble, wood, etc. with screws (+ plugs) or with silicone adhesive.The individual spike strips can be cut to fit.Size: 60 x 5.8 cm Pigeon guard with spikes