Electrical Supplies
AUTOWIRING Arctic Grade Blue Flex 3183A 2.5mm2 3 Core Outdoors Heavy Duty 25AMP 240V Mains PVC Cable Wire (30 Metre)
Arctic Grade 2.5mm2 3 Core Flex 3183A 240V Mains Cable ideal for outdoor use 25 AMPS 10.5mm Overall Diameter of Cable Blue External Sheath - Brown, Blue, Green/Yellow Cores
https://www.bizrate.co.uk/electricalsupplies/autowiring-arctic-grade-blue-flex-oid27582071708.html