VeDO Plum KEGEL BALLS deliver discreet and deeply gratifying sensations. Designed to provide you with pleasurable vibrations while building and toning pelvic floor muscles. The structural design and supple material make it easy to insert and ideal for varied levels of experience. Heavy metal ball inside. Extremely quiet. Velvety smooth silicone. Designed for an easy insertion. Waterproof. Length: 11cm. Max diameter: 3.5cm.