The Master Series Oculus is a stainless steel anal explorer designed for those interested in medical play. Constructed from durable, non-porous, and nickel-free steel, this product is compatible with all lubricant types. It features one large ring with a diameter of 4.1 inches and six dilators that can be individually adjusted from 1 inch to 4.1 inches in diameter using wingnuts. The insertable length of the dilators is 2.9 inches, allowing for a customizable experience. The design ensures that only the smooth steel contacts sensitive tissues while the adjustment mechanism remains outside. Cleaning is straightforward: simply rinse with warm water and mild soap or boil it, followed by a spray of isopropyl alcohol. Product dimensions include an inner diameter of 4.1 inches for the center ring. This item is manufactured by XR Brands and is intended for those looking to explore their limits safely and effectively.