What is tufted interior in caskets characterized by?

Tufted interior in caskets is characterized by the presence of small raised puffs or dimples created by stitching fabric in a particular way. This technique involves sewing the fabric in such a manner that it forms small pleats or "tufts," giving the interior a rich, textured appearance. The tufting adds depth and dimension to the lining, enhancing the overall aesthetic of the casket. This style is often associated with more luxurious casket designs, as it can convey elegance and a sense of comfort.

The other choices do not accurately describe tufted interiors: a flat lining would have no detail and lacks the visual interest associated with tufting; a shiny finish with no padding does not reflect the plush characteristics of tufted fabric; and a single-layer fabric with minimal adornments fails to provide the intricate, raised effect that tufting offers. Thus, the definition focusing on small raised puffs due to stitching accurately captures the essence of a tufted interior.