Even More Real Than Real! The Flurry O2 is an anatomically targeted Tantus product designed specifically to stimulate the G-spot. With a maximum diameter of 1.5 inches, Flurry's tapered shape is ideal for harness play. Tantus' Dual Density O2 line is crafted to feel realistic, featuring a soft exterior and a firm muscle core, both made from Tantus' unique formula of 100% Ultra-Premium Silicone.