2 Pieces 99.9% Pure Copper Sheet, 4" x 4",18 Gauge(1mm) Thickness, Film Attached Copper Plate, Great for Jewelry, Crafts, modelers

It's copper. It's square. It's way thicker than you can find pretty much any store. It worked for me.

I use these to prevent Alge in my bird bathes . They work great, much cheaper then copper disks sold for this purpose.

I’ve been using the 99.9% copper plates for grounding, and I’ve experienced remarkable relief from discomfort caused by non-ionizing radiation. After placing these plates under my work area and grounding them properly, I noticed a significant reduction in pain in my arm and breast, which had been troubling me for a long time due to a semiconductor implant. The swelling under my arm, although still present, has decreased noticeably. The quality of these plates is excellent, and they work effectively when used for grounding and shielding purposes. I’ve even covered my mouse with copper tape and grounded it using the plates, which enhanced the effect. Since adding these to my setup, I feel much more protected and comfortable. I’m considering adding two more plates to my setup because the results so far have been so positive. If you’re dealing with similar issues or just want reliable grounding for other uses, I highly recommend giving these a try! They’ve truly been a game-changer for me.

Beautiful sheet of metal

The copper plates were not 6" X 6," they were slightly over 3" X 3." I needed them ASAP so I used them anyway. It turns out that they were ideal for the intended purpose, however. Great packaging with excellent film covers on the plates.

These copper sheets were just as expected, a perfect thickness that combines strength and flexibility. I am not expert enough to judge if it is truly 99% copper, but the look, odor (on my hand after handling) and tarnishing seem about right. And it came really well wrapped.

Solid sheets well protected on arrival

Producto de excelente material es tal como se ve en foto medidas exactas

Unitariamente, su valor $/gr es muy alto, pero como es un producto que no se consigue fácil, pues hay que invertir tiempo y traslados, es una opción aceptable, para una sola compra