that the dish antenna is always oriented correctly when receiving signals on the pole. The bottom has three screws already installed to stability when mounting the tube; ensuring that the standard dish antenna stays firmly on the pole even in the face of hurricane force winds! Pipe Adapter is rugged and seamlessly to poles of all sizes, providing flexibility and ease of positioning the star ring for optimum performance. It can also be mounted on roofs and walls as well as ground poles. Colour:Black Material:plastic Package Contents: 1 x for Mini Adapter Mount 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.