D-Line Mini Trunking – decorative cable cover to hide wires on walls.
D-Line 1D2516W Square Box Cable Trunking, Self-Adhesive Cable Hider, Cable Management to Hide Single Cables - 1 x 25mm (W) x 16mm (H) - x 1 Meter Length - White : Amazon.co.uk:
MONTERA Cable trunking, white, 1.1 m - IKEA
Trunking With D-Line - Professional Electrician
MT Sovereign Plus White 3m Trunking Length | Skirting Trunking | CMW