Features Premium heavy duty PP tips offer a great flexibility. Can be easily fitted to the tops of fences, gates, walls, window sills sheds, etc. Technical Specification Base Width: 51mm/2 inch Pin Height: 100 mm/4 inch Strip Length: 406 mm/16 inch Spikes Material: PP Widely Used Fence Spikes Cat Fence Ideal barrier against cats, thieves and other small animals. Warm Attention 1. Replace bird spikes to stop roosting. 2. Please make sure the surface is clean and dry before fixing. 3. Ensure the full width of the ledge is covered by bird spikes. Package Includes 1 Set of Bird spikes