Double sided blank PCB (copper clad board, copper clad laminate, CCL), 7cm by 10cm, sold per each.

This is quarter-thickness stock, the normal PCB stock is about 1.6mm, this is about 0.4mm thick, give or take, including copper.

This is very thin, about the thickness of a business card, a little stiffer. Note due to being very thin some warp is inevitable so not suitable for milling.

Quarter as thick so in theory almost quarter as heavy, this might be useful for your diy drone projects maybe, shaving every gram you can etc...

Weight is approx 0.1g per square cm of board area including copper.

Works just like normal pcb stock, it's still fairly stiff, still FR4 and all that, just very thin.

If you know what this is, I don’t have to explain much more!

Great for your home etching trials and tribulations.

May have my finger prints, surface scuff from shipping, mild surface oxidation etc, you of course need to clean any blank board thoroughly when you transfer your artwork, so such surface marks do not affect the usage. I visually inspect each board to ensure there is nothing that would cause a problem (any that have deep scratches or chips go in the dent-n-ding pile).

I also stock various different types of blank PCB stock and supplies for PCB making. ( https://tinyurl.com/25k2soe6 )

See all my listings: https://tinyurl.com/26tzbx6d