1 Core 0.75~4mm² RV Flex Wire PVC Electrical Wire Cable Copper Core Line 5 Color | eBay
RS PRO Blue 2.5 mm² Single Core Control Cable, 13 AWG, 7/0.67 mm, 100m, PVC Insulation | RS
4 Core Copper Wire, PVC Insulated Safe AC500V Copper Core Cable for Household Appliances for Instruments for Meters for Small Electric Tools : Amazon.co.uk: DIY & Tools