First let me say that I was very happy to have found this, since I am allergic to most rubber materials, or so I assume, since all rubber materials used on me below the belt gives me Uti’s. No fun. Next, let me say that this is a very impressively made piece. The glass is good quality, and the craftsmanship is practically flawless. The size is perfect! Above average, but not ridiculously huge. It makes my nights spent alone happy ones. LOL