A 25m × 2.5mm cable reel is a heavy-duty extension cable designed to safely deliver electrical power over a long distance.
It typically includes a 25-meter-long cable with a 2.5 mm2 conductor cross-sectional area, which is relatively thick and suitable for higher power loads compared to smaller cables. The cable is wound on a reel (drum) that makes it easy to store, transport, and unwind as needed.