Whether used vaginally or anally, this big black dildo provides a richly layered stretching experience, particularly suited for those seeking a “fullness sensation” and deep stimulation. Realistic Giant Dildo with Flexible Shaft - The flexible shaft design allows the huge black dildo to freely adjust its angle, effortlessly adapting to various positions and overcoming traditional pain points like “too rigid for anal use” or “too flaccid for insertion.”.