Easy Installation: 1 inch ball mount arm M6 threaded rearview mirror is easy to install, easy to disassemble, and can be installed directly, saving time and effort | High-Quality Material: 1 inch ball mount with 1/4 inch threads is made of high-quality stainless steel and TPU, it is non-slip, water-resistant, and does not rust | Non-slip and Durable: The diameter of the M6 1" ball head is 1 inch ball mount, and the surface is covered with non-slip rubber, which is non-slip and durable | CNC MOULDING: 1 ball mount base is CNC precision engraving, precise size, smooth surface, no scratching | Top After Sale Service:If there is any question about the quality or how to use of the product, please contact us imediately