Insert these elegant, hand-blown glass pleasure balls inside you, and stay stimulated all day long! These smooth glass spheres embedded with delicate handmade flowers also exercise your vaginal muscles, resulting in more control during sex and stronger orgasms. They’re completely discreet – no one will know you’re wearing them. - Internal stimulation for women - Strengthens pelvic muscles - Made from non-porous, hypoallergenic glass - Each ball 2.5 cm (1 inch) wide - Waterproof