[QUALITY MATERIALS] The Mounting Brackets Extension Armm with protective all-weather Matt Black color powder coating,excellent corrosion resistance,solid,non-deformation,corrosion resistant. MANY YEARS without Replacement. [WIDELY USE] Widely Used Poles,The Extension Mounting Arm is widely used. The pipes can be used for Solar Street Lights, Light, Street Light, Parking lot floodlight, barn light. At the same time, they can also be used as antenna support rods, storage tire rods, wall mounting brackets, wall hooks, and iron tree arms. [WIDELY USED SIZE] The size of the Light Pole Mount is very suitable. :2 inches or 50mm length:20 inches or 50cm, 10 inches or 25cm. Strong but light, suitable for aerial work.Fit for pole of diamter: Install light poles with a minimum size of 1.6 inches and a maximum size of 3 inches. [EASY INSTALLATION] Easy installation and Sturdy pole,Fit the street light perfect. Very easy is it to install,only three minutes to complete the installation! The solar street mounting bracket can be installed not only , but also on the pole. Quantity:1Pcs Colour:Black Material:Metal Package Contents: 1 x Mounting Brackets Extension Arm for Outdoor Light Fixtures(With mounting screws and tools) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.