The entire Crystal collection is made of 100% hand-blown, premium Borosilicate glass. These items are of the highest quality, and represent the most vibrant and durable glass products available today. Crystal items can be heated/cooled to personal taste. The Crystal small glass Kegel wand features 7.5 inches of sexy, vibrant pleasure. Used as a Kegel exerciser and pleasure enhancer, this item is a work of art in its most sensual form.