Ow, a bit expensive. I use mechanical pencils, usually from Wallyworld, something like 12 for $2-3. Lose one and you don' t grieve for it. I have little or no issues with erasing pencil lines, because I have possibly the worlds best erasers.
Some years ago I got a pack of I think it was 3 or so 1/4" thick sheets of some rubbery type stuff that was supposed to great for carving rubber stamps from, can't recall the name off-hand. The stuff was lousy for carving a stamp, unless you wanted hobby stamps, with really large lettering, etc. Well, I didn't. And, somehow, got the idea of trying erasing with one. Fantastic. I have tried all types, and prices, of erasers, because I sketch a lot. Nothing I had ever tried before was even close to this stuff. Cut it all up in rectangular pieces about an inch long, gave a whole lot to my grand-daughter, and still have enough to last me thru the next two reincarnations. If I can recall the name of the stuff I'll post it.
"It ain't what you're told, it's what you know." - Granny Weatherwax
Some days, the supply of available curse words is insufficient to meet my demands.
Call me a craftsman, artisan, or artistic, and I will accept that. Call me an artist and you will likely get a quite rude comment in return. I am not a @#$%ing artist.