Patina Chef Knife | The "Wallaby" Knife | G10 HandleIntroducing Koi Patina Knives. Designed for the professional kitchen, we have taken some of our favourite designs and reinforced them with G10 handles and forced patina finish. This improves their wear resistance, allowing the knives to take on some of the brutal challenges a commercial kitchen has in store. The newest member of the Big Red family, The Wallaby is now joining our Industrial Collection. The smaller, more agile cousin to the Kangaroo,