Lalleri

Sex toys made from solid glass are very heavy. hollow glass, if it is thick enough, is safe and easier to handle. Like this is lightweight and reaches room temperature easily and quickly. The empty cavity lends itself to all sorts of alternative uses. You can put any sort of liquids inside

Of course. You can wash it in the same way as any other glass kitchen utensil!

Glass is Safe, hygienic, hypoallergenic. Pyrex is a very pure type of glass, suitable for internal use. It’s perfectly smooth surface is pleasant to touch and completely hygienic (food safe, you can drink from it).
Olé is 4-7mm thick, same thickness of a bottle of champaign: is therefore very strong, but not completely indestructible, so don't smash it on the floor.

Borosilicate glass is a sustainable material, 100% recyclable and unlike other types of glass it doesn’t contain lead.