5 ft / 10 ft / 20 ft stainless steel pigeon swallow sparrow bird with flexible plastic base strip - (can be connected one by one) - (flexible, can be fixed anywhere) - (long nails made of stainless steel) - (can be used for birds or big birds does not matter) - (Get rid of the birds, don't hurt them) Use spikes to prevent birds from nesting and destroying property. This is a harmless, easy to apply and very effective bird repellent method with an effective rate of 100% at installation. Annoying spikes are low-key and light. The bird nails are made of durable, lightweight materials. The spikes do not harm the birds trying to land. Spikes will act as a deterrent, and birds will fly away to find another place to inhabit or inhabit. description: - Color: as shown. Material: flexible plastic strip + stainless steel nail - A strip of approximately 19. 69" (50 cm) plastic base with 30 spikes (60 tips) - Needle diameter is 0. 05", length is 4. 33" (11CM) - Packing: nail and base are not assembled, please install separately; color box packaging - Easy to install - Spikes can be used to protect fences, window sills, gutters and roof cavities, even on round surfaces. - Drive birds, such as seagulls, crows, pigeons, starlings, sparrows, etc. - Ideal for balconies, roofs, barns, commercial signs, terraces, parking lots, etc. - Humanity - will not hurt birds! A virtually invisible, cost effective solution.