The surface skin is soft while the core is made of denser silicone which is firm. Optimal sturdiness just like a real hard penis before ejaculation. Neither too soft and floppy which difficult to be inserted, nor too hard to hurt your sensitive skins, the modest sturdiness bring the sensual pleasure you will love and moan out with joy! The 7″ length easy reaches sensual G-spot or male prostate for toe-curling stimulation.