Sold by the metre accurately: NYM-J 5x6 mm² - NYM-J 5x6 mm2 - sheathed cable - installation cable - grey - selection in 1 metre increments - example: 5 m - 10
NYY-J 3 x 1.5 MM ²/50 M Ring-For outdoor installation on the ground : Amazon.de: DIY & Tools
JUMBO Connection Box 4-Way with 4x M25 Cable Entry Including Connecting Terminals, IP68, Waterproof Cable Sleeve 220 V - 240 V for Earth Cable : Amazon.de: DIY & Tools
Auprotec Vehicle Cable, 4.0 mm², FLRY-B as Ring, 5 m or 10 m : Amazon.de: Electronics & Photo