The M100U features Millenium's ergonomic comfortMAX tight sling seat for extra comfort for an all day hunt. The M100U also includes a cam-lock ratchet strap receiver. At Millennium, they know that the best way to increase your chances is to sit in a prime location from sun up until sun down. Their stands feature patented technology that is engineered for that purpose-to be the most comfortable and quietest stands period. Every angle, hinge and weld, has been tested under the most extreme conditions and by the most ardent hunters. Millennium stands are designed to be the best compromise of weight, quietness, strength, security and comfort for its intended use.