Features: This adapter features a male thread of M54×0.75 on single end and a female thread of M48×0.75 on the other Packing List: 1 piece X anodized aluminium telescope adapter Material: Constructed entirely of metal and treated with an anodizing process on aluminum, it ensures long - lasting durability Flexible Design: The telescope adapter ring is crafted to be portable and convenient Easy Installation: This T-ring adapter is straightforward and efficient to install