Price is per meter.
Buy the size and quantity you need to receive in one continues length.
1.5mm: 2 x core (1.5mm) and 1 x earth (1.5mm)
2.5mm: 2 x core (2.5mm) and 1 x earth (2.5mm)
2 x core (4mm) and 1 x earth (2.5mm)
6mm: 2 x core (6mm) and 1 x earth (2.5mm)
10mm: 2 x core (10mm) and 1 x earth (4mm)