This is the smaller of the solid flat back anatomical skull casting.  The back is complete smooth and flat.  There is a larger version.

All sizing can be located in the photos.

When you buy my castings, you're getting them for your designs, not exclusive rights. Discounts are automatic for any "castings"; no need for a tax ID or code. Discounts are based on how you spend.

Most orders take about a week or 2 to ship. I make them to order, so there's no surplus on hand. If you're in a rush, ask about rush orders or faster shipping options before placing your order.