Electrovision F381 6.35mm Stereo Plug to 3.5mm Mono Socket Adaptor
Electrovision Product Overview
6.35 mm stereo plug to 3.5 mm mono socket. Depth (mm): 10 Height (mm): 45 Width (mm): 10 Product Dimensions (mm): 45x10x10 Net weight (kg): 0.005 Colour: Nickel
Does what it says, not much else to say. Cheep and cheerful.