That's just epoxy putty at a mark up, the details on the product are so bad I can't find if its reinforced putty like most dark putty brands or just dye.
When I was 12 this would’ve been bad ass. Now I’m in my 30s and been paying taxes now for 15 years I have a different opinion now. Lol god damn I’m turning into an old fart.
It's a dull slab of concrete. I actually find it aesthetically offensive and am disappointed that more thought wasn't put into it's appearance. Good thing someone like this kid is making it useable for something other than containing dirt, which it is still capable of doing even after the modification. Who says you need to be a mason to push a rub brick? Do you need to be an op-ed journalist to post your lousy opinion on the internet? Clearly not since you've done it here for free. Let this chunk of concrete go, and worry about the millions of other ones strewn about wherever you live that people walk past everyday without ever thinking about.