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: 5.06“, Depth: 1.43", Width: 1.43" Insertable length 3”, Insertable diameter 1.29" Made from borosilicate glass & aluminum alloy Immerse in warm or cool water for temperature play Waterproof & submersible