A set of Vivitar, Japanese produced Macro lenses for close up photography. These are great for macro nature photogarphy with an OM1 or other SLR. Lenses are scratch and dust free and will allow magnifications of from 1.5X to 7X optical magnification. These have given me much pleasure photographing flowers, insects and other close-ups and I don't use them anymore.
They come in a nice leatherette case and box with full instructions.
$29.00 includes shipping.