Donner DP-2 guitar pedal power supply 10 isolated DC 500mA for 9V/12V/18V effect

Donner

Appears to be in very good condition. Powers on, not tested further. Assumed to be fully working. If not I'll pay for return postage and give a refund. I do not know if it works. Minor marks.\nIncludes only what is shown in photos. No other accessories. No original packaging.\nFree UK postage.