OHTO Minimo Mechanical Pencil with Card Holder
This very small mechanical pencil is a perfect companion for your Sketch Wallet. At 3.5 inches (9.0 cm) it easily fits into any wallet. It's so slim you can fit it into the pencil holder along with other drawing tools. It comes with a convenient pencil holder the size of a credit card and can slide into any credit card pocket. Lead size is 0.5mm.