Plug and for play, easy to operate, for power adapter connector plug The 4.5 x 3mm Female to 7.4 x 5.0mm male converter is ABS environmental, safe, odorless, non‑toxic and lightweight and portable It's a good replacement for your for laptop Female head: Approx. 4.5 x 3mm / 0.2 x 0.1in, male head: Approx. 7.4 x 5mm / 0.3 x 0.2in, Very suitable for short‑distance transfer, easy and to use, Manufacturer: LEADSDGE