The smooth, borosilicate glass will give you that good, full stretch you desire. The flared, circular base will make sure the plug doesn't go completely in, and it helps the plug stand on its own to be a centerpiece display. If you're feeling more adventurous, you can incorporate temperature play with the Asvini, by heating or cooling it. Specs: Asvini Glass Penis Butt Plug Size: 5 inches in total length,4.5 insertable, 1.85 inches in diameter at widest point Material: Borosilicate glass Color: Clear Offers equal amount of visual appeal and ass-stretching functionality Flared, circular base lets the plug stand on its own for a proud display Can be heated or cooled for adventurous temperature play