Best extension leads[UK]: Top outdoor cable reels with waterproof options - 15m,20m, 25m, 50m reviewed » Shetland's Garden Tool Box
STATUS 2 Socket Cable Reel | 20m Green Waterproof Extension Lead | 13A with Thermal Cut Out | Heavy Duty Outdoor Extension Lead | S20M2G13AIP54CR2, Black : Amazon.co.uk: Electronics & Photo
VonHaus Extension Reel, 25m Heavy Duty Extension Lead for Indoor and Outdoor Use, Thermal Cut Out, Corrosion Resistant Cover, | DIY at B&Q
Wilko 13amp 15m 2 Socket Garden Extension Lead | Wilko