The Uni-ball Color series offers six body shades to match lead color in 0.5 mm and 0.7 mm sizes. Its sliding sleeve moves forward to protect against lead breakage, and its springy caps hide a matching color eraser.
I've bought this one and 3 other colors to color match my lead color. It is
very helpful and I am still happy with all of them. Really wish I could order
more colored 0.5mm lead for them. It is really useful for mechanical drafting.