Wallnuts are highly featured pieces of climbing hardware. Different alloy is used for each size - smaller Wallnuts are made from a harder alloy to prevent shearing, while larger sizes are softer so they can bite into placements. Larger Wallnuts feature hollow construction to reduce weight. Features: Curved taper gives stable placements and resists lifting out Allows placement in two orientations for increased versalitity Grooved faces improved security in irregular rock Colour coded for easy size identification