This listing is for a SE Dual Jeweler's Loupe Dual Magnifier. This loupe has a lens on both ends of the case with 10X magnification through one lens and 20X from the other. The lenses are housed in a polished metal frame which folds away into a matching polished metal protective case. The case functions as a handle when the loupe is open. The loupe measures approximately 3.5" in its extended position with both lenses out. The 20X lens has a diameter of 12mm and the 10X lens has a diameter of 18mm. Each order is for a loupe and hard plastic carrying case. This is a new magnifier in the original packaging from our inventory.