• High-quality ABS resin material, finely polished, smooth and delicate. • 3D-printed design with a smooth surface and no burrs for greater comfort. • Hollow and breathable structure that ensures air circulation and allows for smooth urination. • Includes an anti-slip elastic belt to prevent accidental detachment and increase firmness. • Comes with 4 rings of different inner diameters: 41 mm, 46 mm, 51 mm and 57 mm. • Invisible closure with hidden lock cylinders that are not exposed to the outside. • Neutral and completely sealed packaging to guarantee maximum privacy.