Pro Lock 12/3 SJTW Lighted Extension Cord with CGM, Green - 50 ft.
MicroConnect Extension cord C13 IEC Lock to Male C14, 4m, Black, W127247548 - Oprema
TetherGuard Extension Lock — Color Confidence
3.3ft (1m) Z-Lock Dual Locking IEC320 C14 to IEC320 C13 14AWG 250V/15A Power Extension Cord, Blue - FS.com United Kingdom
50ft 12/3 SJTW Jobsite® Outdoor Extension Cord w/Locking & Lighted — Prime Wire & Cable Inc.
12/3 Yellow/Blue Locking Extension Cord with Lighted End (L5-20)
Click-to-Lock Lighted Extension Cord | Bad Ass Extension Cords
Woods® Push-Lock Extension Cords w/ Black Plug – Woods Home Products
Camco 25' PowerGrip Extension Cord with 30M/30F- Straight Locking Adapter | Allows for Easy RV Connection to Distant Power Outlets | Built to Last (55501) : Amazon.co.uk: DIY & Tools
10ft 30A 250V 3-Prong NEMA L6-30 Industrial Locking Extension Cord by AC WORKS® 819145020879 | eBay
2ft (0.6m) Z-Lock Dual Locking IEC320 C14 to IEC320 C13 14AWG 250V/15A Power Extension Cord, Black - FS.com United Kingdom
Clear Power 50 ft Extra Heavy Duty TPE Rubber Outdoor Extension Cord 10/3 SJEOW, Lighted Locking Connector, Blue/Orange, Oil Water & Weather Resistant Flame Retardant, 3 Prong Grounded Plug, CP10093 : Amazon.co.uk: