4mm 3 core flexible cable, heavy duty neoprene rubber, price is per metre. 

• H07RN-F 4.0mm heavy duty neoprene rubber cable
• Excellent UV, mechanical impact and water resistance
• Relevant cable standards: AS/NZS 3191, AS/NZS 5000.1, AS/NZS 3308,IEC 60227, IEC 60332-1 Lead: AS/NZS3820:2009 A1