This Giant Jumbo Jack XL Dildo from Doc Johnson is their biggest Dildo by far. The Giant Jumbo Jack XL Dildo is one huge Dildo and perfect for those up to an anal challenge. This massive Dildo may be made soft, smooth and realistic in shape, but this really is for the more adventurous users. It measures a whopping 15 inches in length by 2.75 inches in diameter with an 8 inch girth. Made from Sil A gel material, it is anti bacterial and latex free. With just over 11 inches of deep satisfying penetration, this big boy is certain to please all who attempt it.