CK Products 3D 4 cavity Haunted House chocolate mold. Not sure exactly how the pieces connect, but there seem to be multiple options. Two cavities measure approximately 4 3/4 x 3 1/2 x 1/4 inches, one measures 3 1/4 x 2 1/2 x 3/4 inches, and the fourth measures 4 x 3 x 1/8 inches. A little dusty from storage, but never used.