Bird-B-Gone Spider - 8ft. Dia. x 8in.H, Model# NTBS800 Bird Spider is a visual bird deterrent used to scare large birds away from concentrated areas. This bird deterrent is humane, safe, and will not harm birds No-tangle arms bounce and sway in the wind, creating a visual distraction zone so birds will not want to come near the area Pre-assembled, easy to install; available in 2 ft., 4 ft., 6 ft., and 8 ft. diameters for optimal coverage Patented design has been high wind tested - will not break or fall off in high wind areas. Made in USA by Bird B Gone, Inc