bird repeller/Bird-Control/bird spikes,Bird-scaring unit,birdstrike prevention,small bird-prevention ,small bird-prevention --Bazhou deli power tools various kinds of bird repeller Made by insulating material,avoid electric from Poles of metal, uvioresistant, hard wearing, resistance to weathering, Anticorrosion .--Bazhou deli power tools 1. Angle : 90°/up 95°/ down 85° 2. 360°reflection,no blind-spot . 3. Only need gentle breeze to turn, rotate speed:50/min. 4. knighthead made by steel/rolled steel/plastic. 5. bearing: high-speed bearing and watertight is good. 6. rotating part made by high strength ABS, rust prevention, corrosion prevention, indeformable. base adopt special U-shaped design ,its efficiently increase the contact area with steel angle ,makes more stable. Simple design, flexible removement, available for high aloftwork. 7. biade diameter :20(40)cm