E-glass, otherwise known as cyberglass, is a suitable material used to make sex toys. This material is dishwasher safe and can be cleaned by boiling or a careful cleaning with antibacterial soap. This type of glass is chemical resistant, phthalate-free, non-porous, requires less lubricant than other types of glass. It is compatible with silicone, water, and oil-based sexual lubricants. E-glass toys often have excellent durability and surface hardness. This glass is often used to make dildos and other sex toys.