Surge and spike protection, fitted in-line with heavy-duty booster cables. Clever traffic-light LEDs show when protection is in place and it is safe to proceed jump-starting. Features & Benefits:25mm² x 7m.Surge and spike protection fitted in-line with heavy-duty booster cables.Clever traffic-light LEDs show when protection is in place and it is safe to proceed jump-starting.Suitable for 12 and 24V systems.Model No. PROJ/12/24 Specifications: Model No PROJ/12/24 Brand: Sealey Cable Section: 25mm² Capacity: 450A Length: 7m Nett Weight: 4.70kg System Voltage: 12, 24V