Check the listing for details. 4 New Black & Silver Numbered 7/8" Knobs 1/4" shaft for Vintage Guitar Amp (Qty). Condition: Open box. Listed at 20.00 USD. Up for sale here is this set of 4 new vintage-style black & silver-colored knobs. These are numbered, and are about 7/8" in diameter at the numbered part, so just a little under 1". They are for a standard 1/4" round shaft, each locking on with a set screw (included). These are really neat knobs. Please see my pictures for details and dimensions. US shipping and handling is $5, and international is $18. All my small parts are set up for combined shipping, so just use the "add to cart" feature and then check out all at once, and it will combine shipping. If you have any questions, please ask. Looking for more parts? I have power switches, feet, pushbuttons, top case screws, bottom screws, faceplate screws, white LED fuse lamps, blue LED fuse lamps, 6.3v bi-pin bulbs, 8v bi-pin bulbs, 12v bi-pin bulbs, wired 8v 60ma bulbs, new power cords, new main capacitors for the Marantz 1060/2230, wired Pioneer speaker plug replacements, new 630v yellow film capacitors at 38 different values, new 1200v yellow film capacitors at 15 values, a large variety of transistors for vintage stereo repair, new Wima film capacitors for stereo repair, new 250v yellow film crossover capacitors, and more. Just use "add to cart" on everything you want and then check out for combined shipping.