Bonsai Training Wire Set of 3 Sizes 3 popular sizes of Bonsai training wire totaling over 60 feet, enough to last a long time. Save over $6.00 by buying this set. Train your Bonsai in the true traditional material of excellent quality annealed copper wire, will not rust Soft enough where it will bend the branches of the trees easily that you are shaping. a total of almost 250grams of the 3 sizes of 1.0mm-1.5mm-2.0mm wire 30 feet of the 1.0mm, 20 feet of the 1.5mm, 12 feet of the 2.0mm, totaling over 60 feet, enough to last a long time