To popularize the bonsai art, supplying the standard grade bonsai tools to the bonsai beginner, it's material is 3Cr13 alloy-steel, handmade by skilled worker from . The 3Cr13 alloy steel, which contains 0.3% Carbon and 1.3% Chromium, after quenching treatment, it's hardness is over HRC50. this grade tools also have nice quality and complete function. it would let you have the nice tools for cross the threshold of the bonsai art easily. Name: wire cutter SNS-10 Brand: Quality: standard grade Material: alloy steel (3Cr13) Overall length: 205 mm Cutting function: Cut training copper wire less than 8 mm in diameter.