Charcoal – Compressed – 80 X 60 X 30 from Durston Tools. Charcoal Blocks for jewellers manufactured by Durston. These are dense charcoal blocks made from compressed charcoal, three times heavier than standard soft charcoal blocks. Used for reflecting heat back into your work and available in 2 sizes.
This block measures 80mm by 60mm by 30mm and weighs 0.64kg.