Satisfyer Stiulator Double Crystal Hot and Cold (Blue)

The Double Crystal is a glass dildo from Satisfyer with a different end on each side, in blue borosilicate glass, the same material as laboratory glassware: hard, smooth, non porous and safe at any temperature the body can stand. No motor and no noise; the sensation comes from the weight, the hardness and the temperature you give it.

Put it in warm water for a few minutes and it holds the heat; put it in the fridge and it comes out cold and tingling. Glass slides with almost no lubricant and takes any kind, water based or silicone. It is heavier than it looks and firmer than any silicone toy, which is what people who like glass like about it.

Wash with warm soapy water or boil it, dry, and keep it in its pouch. Check it for chips before each use and retire it if it ever cracks.