Tantus first realistic vibrating O2 Dual Density toy, Alan looks and feels remarkably real. Alan also features a harness compatible base, and includes a waterproof vibrating bullet and a Silicone Suction Cup. Tantus Realistic O2 Toys feature detailed skin texture, pores, veins, and wrinkles in three realistic skin colors. These Dual Density Toys are made of 100% Ultra Premium Silicone with a Super Soft outer layer and firm inner core. Harness compatible. Safe for your body. Made from Tantus own unique formula of 100% Ultra Premium Silicone. Easy to clean. Eco-friendly, hypoallergenic, hygienic, boilable, bleachable. Dishwasher safe. Diameter 1.54 inches, insertable length 6.5 inches. Strap on harness not included. Sold separately.