SilexD® offers a range of dildos with extra soft high quality Silicone skin with a dual density SILEXPAN® filling and inner hard core, for an extremely realistic feel and incomparable pleasure experience. The revolutionary Patented formula of the SILEXPAN® material used to fill our products allows for a better density and higher flexibility of the dildo. Giving it a magnific feel and greater elasticity. SilexD® offers the best quality Silicone skin in the market. Is Phthalate-free, latex-free, body-safe, hypoallergenic and non-porous making it easy to clean and more durable. Thermo Reactive (Softer when heated / Harder when cooled) MICROWAVE: Max 30 seconds. BOIL IN WATER: Max. 2 minutes. REFRIGERATOR: No time limit.