Originally designed for lining fireplaces and stoves, Skamolex has become popular in Europe as an alternative to charcoal blocks. Lightweight and rigid, though soft enough to permit the insertion of pins and other thin items. Skamolex is also an excellent surface for firing your metal clay pieces. Gives off no fumes and reflects heat back to your work effectively. And it doesn't rub off on your fingers or your work space. Contains no ceramic fibers, therefore non-dusting, non-irritating and odorless. Has a high mechanical strength, yet it's easy to cut and shape. Available in 2 sizes: 140 x 70 x 30 mm (5.5" x 2.75" x 1.2") and 300 x 200 x 15 mm (11.8" x 7.9" x 0.6")