Which cable for water feature?

[worcesterman47]

Hi guys/ladies,can someone advise on what cable I would need or could use to extend a cable on a water feature (the link to feature is below)..I need to extend the current cable approx another 12ft ..the cable will be indoors and needs to reach the socket it will be plugged into, many thanks in advance.

https://www.amazon.co.uk/GEEZY-Casc...ocphy=1007256&hvtargid=pla-697182730740&psc=1

 

[EFLImpudence]

Extension lead?

There are no details in the description other than "They run on an electrical pump, which has the benefit of no running costs /5 m/.".
Don't know what that means so can only suggest the same/similar type of cable that is fitted to it.