I ordered the large and it's the greatest overnight and long-wear butt plug I've ever worn. It comes in a really nice case (like an oversized ring box) well suited to its beautiful polished finish and it does not look out-of-place as an objet d'art.
The unique design allows very pleasurable sensations by turning the plug (especially pleasant if you have it over night).
The weight is such that you are never unaware of its comforting presence.
For a real exciting sensation it is a great companion for the Prince's wand. A Master or mistress will enjoy these as much as it will please your boy.