White, #400 grit, sanding block.  Great for cleaning or sanding off pencil lines on eggs and smoothing egg surface.  Many other uses.  3 3/4" long x 1" square, rigid foam.

White, #400 grit, sanding block. Great for cleaning or sanding off pencil lines on eggs and smoothing egg surface. Many other uses. 3 3/4" long x 1" square, rigid foam.