Description_x000D_ General description_x000D_ This desiccator plate has a greater resistance to thermal shock than porcelain plates. It has a fire-polished surface, and is a light green ceramic bonded to a metal core for inertness and corrosion-resistance. Numbered quadrants are marked for easy location of crucibles, weighing bottles, and other containers. Recommended use with Nalgene desiccator such as D2547, Z354074 and D2797._x000D_ The center hole is 7/8 in. diam. The plates have 24 holes.