Features Attach using pre-drilled holes or adhesive All stainless steel construction for maximum effectiveness Stop birds from landing on fences, walls and buildings Prevents birds from landing on buildings and fences Deters cats from climbing over walls and fences 105mm intercrossing steel spikes for maximum effectiveness Prevents damage and reduces noise and droppings Product DescriptionProduct Description Stainless steel base and spikes. Can be attached to wooden or concrete surfaces using pre-drilled holes or to plastic surfaces with double-sided adhesive or suitable glue (not included). Prevents birds from landing on buildings and fences. Width 50 mm. Spike length 105 mm. Box Contains 10 x Metal bird spikes 500mm (4 spike)