This anal dildo has a ribbed structure which has a stimulating effect. It is made from 100% Premium Silicone and has a KlicLok Connector, making it compatible with our Premium Sex Machines. The body-safe silicone material feels incredibly comfortable. The dildo has a subtle thickness of 4 cm and is 19.5 cm long (penetration length 16 cm). The 100% Premium Silicone is medically approved quality material.