For sale is a pair of 8" Knob Cutters. Knob cutters are designed for cutting out knobs from trunks and branches with minimal scars. The round and slightly overlapping blades allow you to make hollow circular cuts that heal quickly with minimal scarring. To make Stanwood brand bonsai tools, we teamed up with two Japanese manufacturers that have a combined experience of over 150 years in making high quality bonsai shears. These tools are individually forged and adjusted to perfection by highly skilled craftsmen. They are widely used by Japanese bonsai club leaders and experts. All Japanese made Stanwood Bonsai Tools are covered by unconditional THREE year warranty.