Highly imaginative and ergonomic design, soft, hygienic, nonporous, odorless, anti-allergic, durable, easy to clean, phthalates free. Rechargeable, waterproof. Material: 100% silicone. USB rechargeable with 12 different vibrating modes. Length 6" (15.3cm) , diameter 1"-2" (2.5 - 5.2cm)