Inside size of the mold is apx 2-5/8" from Top to Bottom & 2-1/2" across the bottom of the Tree & 1/4" deep. Machined graphite ingot with a slight wall taper for better metal removal. This Mold is great for making Tree bars or Necklace Pendant or Charm then customize it. The weight of each bar depends on what metal your working with and how full you fill each cavity. Full to the top plus a bit more will give you a apx 10 Troy ounce Gold Bar. Silver will be like 5 oz+. Keep in mind the bottom of the mold is the bottom of your bar.