Sleek, smooth, and nonporous, this black glass plug has a perfectly round head that tapers to a slim stem, finishing with a flared safety base. The finger ring design enables precise navigation. Height: 5.06in., Depth: 1.43in., Width: 1.43in. Insertable length 3in., Insertable diameter 1.29in. Made from borosilicate glass and aluminum alloy Immerse in warm or cool water for temperature play Waterproof and submersible