The Runt J4 has an 154-CM stainless steel California legal blade (black coated, plain). The black anodized handles are milled from T-6061 aircraft aluminum and feature maple burl scales. Despite the knife's small size it feels very good in the hand (it feels much bigger than it is) and has superb action. It opens like a rocket and locks up solid. The Runt J4 also has a TiNi pocket clip.