The size of the pots is written in the description: 6-1/2 × 4-3/4 × 2-3/8 inch. If you are used to metric system as more than 95% of our planets population you can use convertion tools online.
For wire I use copper anodized aluminium wire for bonsai. The prices seems to be quite the same wherever one look. You can get better price per kg if you buy bigger packages.
yes i saw the size. what is your opinion on that size? is it too small for most trees? I don't want them to become pot bound too quickly. That size seems too small to me but maybe i am wrong.
thanks for wire recommendation.