Should you make a mistake or go over the lines, MATI pencils can be erased to leave around 10% of their pigment, which is significantly more than even the most expensive pencils like Prismacolor. They sharpen very well with no breakages and have the density to hold a sharp point. They will only smudge if you wipe your hand over them just after colouring- so make sure you blow any pencil residue off the page and handle carefully.
The barrels are thicker than standard, measuring 7.6mm in diameter with a chunky 3.8mm lead. This gives the core strength and allows it to stand up to pressure for children or heavy handed colourists. They feel very robust and strong but at the same time are light in the hand and comfortable to hold due to the ergonomic hexagonal shape. The pencils are colour dipped in the same shade as their lead, and have space for a child to write their name on if they take them to school.
You can find the pencils on Amazon here:
Fibracolor MATI Pencils (with free pack of Colorito Pens)
Fibracolor MATI SUPER Pencils