25, 40mm x 2.65mm COPPER CLOUT ROOFING NAILS - ALSO USED FOR TREE STUMP REMOVAL - DIY by TIMco

Tree roots - in the wrong places, such as near feed pipes to septic tanks. You don't want tree roots breaking these pipes. Yes, you can dig tree roots up. Or, you can hammer in 3 or 4 copper nails in each tree stump and over time, let nature do its work. Three copper nails can work 3 times faster than a single copper nail. Sounds okay to me. Thanks again.

Arrived quickly and are exactly as described

I was trying to use Copper Nails to kill off small saplings- as yet no sight of sapling destruction. May have slowed down growth... About 3 months down the line.

They arrived on time. Wanted them to kill a tree stump so although I have nailed them in, only time will tell if they work hence only four stars.

Arrived in time and and product was as advertised.Very competitive price. I bought them to kill tree stumps but it will take some months to see how effective they are

Bought for tree stumps, supposed to work but we'll see, can't fault the nails though, probably great for roofing, no problems with bending or bashed head, went in stump very well no issues.

Bought to kill a tree - utterly useless!

Did the job I needed them to, had to drill some pilot holes in the trunk as they are quite soft, but happy with them.