Beautifully crafted and expertly made, First Glass allows you to indulge your sexual desires with the smoothness and elegance of borosilicate glass.Every piece of these original, vibrating and non-vibrating sculptures has exceptional thermal qualities, allowing you to experiment with either hot or cold temperature play. Their seamless, non-porous surface, make the First Glass line easy to clean and sanitize. Enjoy with water, silicone and /or oil lubricants.