Following the launch of the new extruded wallnuts size 7 to 11 last year DMM have gone one step further and anodised them for easier recognition. Also, understanding the climbers preference to mix and match they have ensured that the new Wallnut colours mirror Sister company Wild Country's Rock colours size for size, thereby making the climbers life easier. After all the ultimate goal is to make the climber's life as simple as possible allowing you to concentrate more fully on the climbing itself. Hot forged smaller sizes 1-6. Colour compatibility with other brands.