Bird Spiders are stand alone visual bird deterrents used to scare large birds from concentrated areas. The Bird Spiders “arms” bounce and sway in the wind creating a visual distraction zone birds will not want to come near the area being treated. Optional mounted bases for easy installation. No assembly required - Easy to install easy to store. Variety of mounting options available. Locking Mechanism ensures the unit will not blow away in high winds. Humane will not harm birds. Virtually invisible and maintenance free. Ideal for a variety of applications including shopping centers parking lot lights signs electrical equipment rooftops boats and more. No-tangle “Scuff Free” tips protect surfaces and help arms bounce and move with the breeze. Size: 4 .- SKU: BRBG014